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This allows them to be generated when CC is set for cross compilation. * AES-NI is now supported with Visual Studio. * AES-NI is now supported in 32-bit builds, or when MBEDTLS_HAVE_ASM is disabled, when compiling with GCC or Clang or a compatible compiler for a target CPU that supports the requisite instructions (for example gcc -m32 -msse2 -maes -mpclmul). (Generic x86 builds with GCC-like compilers still require MBEDTLS_HAVE_ASM and a 64-bit target.) Security * MBEDTLS_AESNI_C, which is enabled by default, was silently ignored on builds that couldn't compile the GCC-style assembly implementation (most notably builds with Visual Studio), leaving them vulnerable to timing side-channel attacks. There is now an intrinsics-based AES-NI implementation as a fallback for when the assembly one cannot be used. Bugfix * Fix a build issue on Windows where the source and build directory could not be on different drives (#5751). * Fix possible integer overflow in mbedtls_timing_hardclock(), which could cause a crash for certain platforms & compiler options. * Fix IAR compiler warnings. Fixes #6924. * Fix a bug in the build where directory names containing spaces were causing generate_errors.pl to error out resulting in a build failure. Fixes issue #6879. * Fix compile error where MBEDTLS_RSA_C and MBEDTLS_X509_CRT_WRITE_C are defined, but MBEDTLS_PK_RSA_ALT_SUPPORT is not defined. Fixes #3174. * Fix a build issue when defining MBEDTLS_TIMING_ALT and MBEDTLS_SELF_TEST. The library would not link if the user didn't provide an external self-test function. The self-test is now provided regardless of the choice of internal/alternative timing implementation. Fixes #6923. * mbedtls_x509write_crt_set_serial() now explicitly rejects serial numbers whose binary representation is longer than 20 bytes. This was already forbidden by the standard (RFC5280 - section 4.1.2.2) and now it's being enforced also at code level. * Fix potential undefined behavior in mbedtls_mpi_sub_abs(). Reported by Pascal Cuoq using TrustInSoft Analyzer in #6701; observed independently by Aaron Ucko under Valgrind. * Fix behavior of certain sample programs which could, when run with no arguments, access uninitialized memory in some cases. Fixes #6700 (which was found by TrustInSoft Analyzer during REDOCS'22) and #1120. * Fix build errors in test programs when MBEDTLS_CERTS_C is disabled. Fixes #6243. * Fix parsing of X.509 SubjectAlternativeName extension. Previously, malformed alternative name components were not caught during initial certificate parsing, but only on subsequent calls to mbedtls_x509_parse_subject_alt_name(). Fixes #2838. * Fix bug in conversion from OID to string in mbedtls_oid_get_numeric_string(). OIDs such as 2.40.0.25 are now printed correctly. * Reject OIDs with overlong-encoded subidentifiers when converting them to a string. * Reject OIDs with subidentifier values exceeding UINT_MAX. Such subidentifiers can be valid, but Mbed TLS cannot currently handle them. * Reject OIDs that have unterminated subidentifiers, or (equivalently) have the most-significant bit set in their last byte. * Silence a warning about an unused local variable in bignum.c on some architectures. Fixes #7166. * Silence warnings from clang -Wdocumentation about empty \retval descriptions, which started appearing with Clang 15. Fixes #6960. * Fix undefined behavior in mbedtls_ssl_read() and mbedtls_ssl_write() if len argument is 0 and buffer is NULL. Changes * The C code follows a new coding style. This is transparent for users but affects contributors and maintainers of local patches. For more information, see https://mbed-tls.readthedocs.io/en/latest/kb/how-to/rewrite-branch-for-coding-style/ * Changed the default MBEDTLS_ECP_WINDOW_SIZE from 6 to 2. As tested in issue 6790, the correlation between this define and RSA decryption performance has changed lately due to security fixes. To fix the performance degradation when using default values the window was reduced from 6 to 2, a value that gives the best or close to best results when tested on Cortex-M4 and Intel i7. @ text @$NetBSD: distinfo,v 1.19 2023/01/03 12:47:51 wiz Exp $ BLAKE2s (mbedtls-2.28.3.tar.gz) = 1598ef9876f9f85bc4207e555b89fb7ead5c0ce5f4b0f6e76e8f38b9cf1b15ec SHA512 (mbedtls-2.28.3.tar.gz) = f91d29f0cc2d602bcc3492e0c2bbe8aab60f50d5e770791e86c60ba72f99d37f1d50ae4f02f762e963cc8cd97168cf3f3f8e4a8561e67f61b0c864b1a16b34e8 Size (mbedtls-2.28.3.tar.gz) = 3952712 bytes @ 1.19 log @mbedtls: update to 2.28.2. = Mbed TLS 2.28.2 branch released 2022-12-14 Security * Fix potential heap buffer overread and overwrite in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX. * An adversary with access to precise enough information about memory accesses (typically, an untrusted operating system attacking a secure enclave) could recover an RSA private key after observing the victim performing a single private-key operation if the window size used for the exponentiation was 3 or smaller. Found and reported by Zili KOU, Wenjian HE, Sharad Sinha, and Wei ZHANG. See "Cache Side-channel Attacks and Defenses of the Sliding Window Algorithm in TEEs" - Design, Automation and Test in Europe 2023. Bugfix * Fix a long-standing build failure when building x86 PIC code with old gcc (4.x). The code will be slower, but will compile. We do however recommend upgrading to a more recent compiler instead. Fixes #1910. * Fix support for little-endian Microblaze when MBEDTLS_HAVE_ASM is defined. Contributed by Kazuyuki Kimura to fix #2020. * Use double quotes to include private header file psa_crypto_cipher.h. Fixes 'file not found with include' error when building with Xcode. * Fix handling of broken symlinks when loading certificates using mbedtls_x509_crt_parse_path(). Instead of returning an error as soon as a broken link is encountered, skip the broken link and continue parsing other certificate files. Contributed by Eduardo Silva in #2602. * Fix a compilation error when using CMake with an IAR toolchain. Fixes #5964. * Fix bugs and missing dependencies when building and testing configurations with only one encryption type enabled in TLS 1.2. * Provide the missing definition of mbedtls_setbuf() in some configurations with MBEDTLS_PLATFORM_C disabled. Fixes #6118, #6196. * Fix compilation errors when trying to build with PSA drivers for AEAD (GCM, CCM, Chacha20-Poly1305). * Fix memory leak in ssl_parse_certificate_request() caused by mbedtls_x509_get_name() not freeing allocated objects in case of error. Change mbedtls_x509_get_name() to clean up allocated objects on error. * Fix checks on PK in check_config.h for builds with PSA and RSA. This does not change which builds actually work, only moving a link-time error to an early check. * Fix ECDSA verification, where it was not always validating the public key. This bug meant that it was possible to verify a signature with an invalid public key, in some cases. Reported by Guido Vranken using Cryptofuzz in #4420. * Fix a possible null pointer dereference if a memory allocation fails in TLS PRF code. Reported by Michael Madsen in #6516. * Fix a bug in which mbedtls_x509_crt_info() would produce non-printable bytes when parsing certificates containing a binary RFC 4108 HardwareModuleName as a Subject Alternative Name extension. Hardware serial numbers are now rendered in hex format. Fixes #6262. * Fix bug in error reporting in dh_genprime.c where upon failure, the error code returned by mbedtls_mpi_write_file() is overwritten and therefore not printed. * In the bignum module, operations of the form (-A) - (+A) or (-A) - (-A) with A > 0 created an unintended representation of the value 0 which was not processed correctly by some bignum operations. Fix this. This had no consequence on cryptography code, but might affect applications that call bignum directly and use negative numbers. * Fix undefined behavior (typically harmless in practice) of mbedtls_mpi_add_mpi(), mbedtls_mpi_add_abs() and mbedtls_mpi_add_int() when both operands are 0 and the left operand is represented with 0 limbs. * Fix undefined behavior (typically harmless in practice) when some bignum functions receive the most negative value of mbedtls_mpi_sint. Credit to OSS-Fuzz. Fixes #6597. * Fix undefined behavior (typically harmless in practice) in PSA ECB encryption and decryption. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.18 2022/08/11 06:40:38 wiz Exp $ d3 3 a5 3 BLAKE2s (mbedtls-2.28.2.tar.gz) = e2bb03fbe4fd8a0448746245138fe952be66301896d8c2697b2d3c2bf91af87a SHA512 (mbedtls-2.28.2.tar.gz) = e459e9b7ba78a536e96842a76c867b08ea3b2ce02cd09e396eadb8760c47edc041e1df541cabe76de52b9b974007829a0288bc9619683f6a601c234b0eece69f Size (mbedtls-2.28.2.tar.gz) = 3934889 bytes @ 1.18 log @mbedtls: update to 2.28.1. = Mbed TLS 2.28.1 branch released 2022-07-11 Default behavior changes * mbedtls_cipher_set_iv will now fail with ChaCha20 and ChaCha20+Poly1305 for IV lengths other than 12. The library was silently overwriting this length with 12, but did not inform the caller about it. Fixes #4301. Features * When MBEDTLS_PSA_CRYPTO_CONFIG is enabled, you may list the PSA crypto feature requirements in the file named by the new macro MBEDTLS_PSA_CRYPTO_CONFIG_FILE instead of the default psa/crypto_config.h. Furthermore you may name an additional file to include after the main file with the macro MBEDTLS_PSA_CRYPTO_USER_CONFIG_FILE. Security * Zeroize dynamically-allocated buffers used by the PSA Crypto key storage module before freeing them. These buffers contain secret key material, and could thus potentially leak the key through freed heap. * Fix a potential heap buffer overread in TLS 1.2 server-side when MBEDTLS_USE_PSA_CRYPTO is enabled, an opaque key (created with mbedtls_pk_setup_opaque()) is provisioned, and a static ECDH ciphersuite is selected. This may result in an application crash or potentially an information leak. * Fix a buffer overread in DTLS ClientHello parsing in servers with MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE enabled. An unauthenticated client or a man-in-the-middle could cause a DTLS server to read up to 255 bytes after the end of the SSL input buffer. The buffer overread only happens when MBEDTLS_SSL_IN_CONTENT_LEN is less than a threshold that depends on the exact configuration: 258 bytes if using mbedtls_ssl_cookie_check(), and possibly up to 571 bytes with a custom cookie check function. Reported by the Cybeats PSI Team. Bugfix * Fix a memory leak if mbedtls_ssl_config_defaults() is called twice. * Fix several bugs (warnings, compiler and linker errors, test failures) in reduced configurations when MBEDTLS_USE_PSA_CRYPTO is enabled. * Fix a bug in (D)TLS curve negotiation: when MBEDTLS_USE_PSA_CRYPTO was enabled and an ECDHE-ECDSA or ECDHE-RSA key exchange was used, the client would fail to check that the curve selected by the server for ECDHE was indeed one that was offered. As a result, the client would accept any curve that it supported, even if that curve was not allowed according to its configuration. Fixes #5291. * Fix unit tests that used 0 as the file UID. This failed on some implementations of PSA ITS. Fixes #3838. * Fix API violation in mbedtls_md_process() test by adding a call to mbedtls_md_starts(). Fixes #2227. * Fix compile errors when MBEDTLS_HAVE_TIME is not defined. Add tests to catch bad uses of time.h. * Fix the library search path when building a shared library with CMake on Windows. * Fix bug in the alert sending function mbedtls_ssl_send_alert_message() potentially leading to corrupted alert messages being sent in case the function needs to be re-called after initially returning MBEDTLS_SSL_WANT_WRITE. Fixes #1916. * In configurations with MBEDTLS_SSL_DTLS_CONNECTION_ID enabled but none of MBEDTLS_SSL_HW_RECORD_ACCEL, MBEDTLS_SSL_EXPORT_KEYS or MBEDTLS_DEBUG_C, DTLS handshakes using CID would crash due to a null pointer dereference. Fix this. Fixes #3998. * Fix incorrect documentation of mbedtls_x509_crt_profile. The previous documentation stated that the `allowed_pks` field applies to signatures only, but in fact it does apply to the public key type of the end entity certificate, too. Fixes #1992. * Fix PSA cipher multipart operations using ARC4. Previously, an IV was required but discarded. Now, an IV is rejected, as it should be. * Fix undefined behavior in mbedtls_asn1_find_named_data(), where val is not NULL and val_len is zero. * psa_raw_key_agreement() now returns PSA_ERROR_BUFFER_TOO_SMALL when applicable. Fixes #5735. * Fix a bug in the x25519 example program where the removal of MBEDTLS_ECDH_LEGACY_CONTEXT caused the program not to run. Fixes #4901 and #3191. * Encode X.509 dates before 1/1/2000 as UTCTime rather than GeneralizedTime. Fixes #5465. * Fix order value of curve x448. * Fix string representation of DNs when outputting values containing commas and other special characters, conforming to RFC 1779. Fixes #769. * Silence a warning from GCC 12 in the selftest program. Fixes #5974. * Fix mbedtls_asn1_write_mpi() writing an incorrect encoding of 0. * Fix resource leaks in mbedtls_pk_parse_public_key() in low memory conditions. * Fix server connection identifier setting for outgoing encrypted records on DTLS 1.2 session resumption. After DTLS 1.2 session resumption with connection identifier, the Mbed TLS client now properly sends the server connection identifier in encrypted record headers. Fix #5872. * Fix a null pointer dereference when performing some operations on zero represented with 0 limbs (specifically mbedtls_mpi_mod_int() dividing by 2, and mbedtls_mpi_write_string() in base 2). * Fix record sizes larger than 16384 being sometimes accepted despite being non-compliant. This could not lead to a buffer overflow. In particular, application data size was already checked correctly. Changes * Assume source files are in UTF-8 when using MSVC with CMake. = mbed TLS 2.28.0 branch released 2021-12-17 API changes * Some fields of mbedtls_ssl_session and mbedtls_ssl_config are in a different order. This only affects applications that define such structures directly or serialize them. Requirement changes * Sign-magnitude and one's complement representations for signed integers are not supported. Two's complement is the only supported representation. Removals * Remove config option MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES, which allowed SHA-1 in the default TLS configuration for certificate signing. It was intended to facilitate the transition in environments with SHA-1 certificates. SHA-1 is considered a weak message digest and its use constitutes a security risk. * Remove the partial support for running unit tests via Greentea on Mbed OS, which had been unmaintained since 2018. Features * The identifier of the CID TLS extension can be configured by defining MBEDTLS_TLS_EXT_CID at compile time. * Warn if errors from certain functions are ignored. This is currently supported on GCC-like compilers and on MSVC and can be configured through the macro MBEDTLS_CHECK_RETURN. The warnings are always enabled (where supported) for critical functions where ignoring the return value is almost always a bug. Enable the new configuration option MBEDTLS_CHECK_RETURN_WARNING to get warnings for other functions. This is currently implemented in the AES, DES and md modules, and will be extended to other modules in the future. * Add missing PSA macros declared by PSA Crypto API 1.0.0: PSA_ALG_IS_SIGN_HASH, PSA_ALG_NONE, PSA_HASH_BLOCK_LENGTH, PSA_KEY_ID_NULL. * Add new API mbedtls_ct_memcmp for constant time buffer comparison. * Add PSA API definition for ARIA. Security * Zeroize several intermediate variables used to calculate the expected value when verifying a MAC or AEAD tag. This hardens the library in case the value leaks through a memory disclosure vulnerability. For example, a memory disclosure vulnerability could have allowed a man-in-the-middle to inject fake ciphertext into a DTLS connection. * In psa_cipher_generate_iv() and psa_cipher_encrypt(), do not read back from the output buffer. This fixes a potential policy bypass or decryption oracle vulnerability if the output buffer is in memory that is shared with an untrusted application. * Fix a double-free that happened after mbedtls_ssl_set_session() or mbedtls_ssl_get_session() failed with MBEDTLS_ERR_SSL_ALLOC_FAILED (out of memory). After that, calling mbedtls_ssl_session_free() and mbedtls_ssl_free() would cause an internal session buffer to be free()'d twice. Bugfix * Stop using reserved identifiers as local variables. Fixes #4630. * The GNU makefiles invoke python3 in preference to python except on Windows. The check was accidentally not performed when cross-compiling for Windows on Linux. Fix this. Fixes #4774. * Prevent divide by zero if either of PSA_CIPHER_ENCRYPT_OUTPUT_SIZE() or PSA_CIPHER_UPDATE_OUTPUT_SIZE() were called using an asymmetric key type. * Fix a parameter set but unused in psa_crypto_cipher.c. Fixes #4935. * Don't use the obsolete header path sys/fcntl.h in unit tests. These header files cause compilation errors in musl. Fixes #4969. * Fix missing constraints on x86_64 and aarch64 assembly code for bignum multiplication that broke some bignum operations with (at least) Clang 12. Fixes #4116, #4786, #4917, #4962. * Fix mbedtls_cipher_crypt: AES-ECB when MBEDTLS_USE_PSA_CRYPTO is enabled. * Failures of alternative implementations of AES or DES single-block functions enabled with MBEDTLS_AES_ENCRYPT_ALT, MBEDTLS_AES_DECRYPT_ALT, MBEDTLS_DES_CRYPT_ECB_ALT or MBEDTLS_DES3_CRYPT_ECB_ALT were ignored. This does not concern the implementation provided with Mbed TLS, where this function cannot fail, or full-module replacements with MBEDTLS_AES_ALT or MBEDTLS_DES_ALT. Reported by Armelle Duboc in #1092. * Some failures of HMAC operations were ignored. These failures could only happen with an alternative implementation of the underlying hash module. * Fix the error returned by psa_generate_key() for a public key. Fixes #4551. * Fix the build of sample programs when neither MBEDTLS_ERROR_C nor MBEDTLS_ERROR_STRERROR_DUMMY is enabled. * Fix PSA_ALG_RSA_PSS verification accepting an arbitrary salt length. This algorithm now accepts only the same salt length for verification that it produces when signing, as documented. Use the new algorithm PSA_ALG_RSA_PSS_ANY_SALT to accept any salt length. Fixes #4946. * The existing predicate macro name PSA_ALG_IS_HASH_AND_SIGN is now reserved for algorithm values that fully encode the hashing step, as per the PSA Crypto API specification. This excludes PSA_ALG_RSA_PKCS1V15_SIGN_RAW and PSA_ALG_ECDSA_ANY. The new predicate macro PSA_ALG_IS_SIGN_HASH covers all algorithms that can be used with psa_{sign,verify}_hash(), including these two. * Fix issue in Makefile on Linux with SHARED=1, that caused shared libraries not to list other shared libraries they need. * Fix a bug in mbedtls_gcm_starts() when the bit length of the iv exceeds 2^32. Fixes #4884. * Fix an uninitialized variable warning in test_suite_ssl.function with GCC version 11. * Fix the build when no SHA2 module is included. Fixes #4930. * Fix the build when only the bignum module is included. Fixes #4929. * Fix a potential invalid pointer dereference and infinite loop bugs in pkcs12 functions when the password is empty. Fix the documentation to better describe the inputs to these functions and their possible values. Fixes #5136. * The key usage flags PSA_KEY_USAGE_SIGN_MESSAGE now allows the MAC operations psa_mac_compute() and psa_mac_sign_setup(). * The key usage flags PSA_KEY_USAGE_VERIFY_MESSAGE now allows the MAC operations psa_mac_verify() and psa_mac_verify_setup(). Changes * Set config option MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE to be disabled by default. * Improve the performance of base64 constant-flow code. The result is still slower than the original non-constant-flow implementation, but much faster than the previous constant-flow implementation. Fixes #4814. * Indicate in the error returned if the nonce length used with ChaCha20-Poly1305 is invalid, and not just unsupported. * The mbedcrypto library includes a new source code module constant_time.c, containing various functions meant to resist timing side channel attacks. This module does not have a separate configuration option, and functions from this module will be included in the build as required. Currently most of the interface of this module is private and may change at any time. = mbed TLS 2.27.0 branch released 2021-07-07 API changes * Update AEAD output size macros to bring them in line with the PSA Crypto API version 1.0 spec. This version of the spec parameterizes them on the key type used, as well as the key bit-size in the case of PSA_AEAD_TAG_LENGTH. The old versions of these macros were renamed and deprecated as follows: - PSA_AEAD_TAG_LENGTH -> PSA_AEAD_TAG_LENGTH_1_ARG - PSA_AEAD_ENCRYPT_OUTPUT_SIZE -> PSA_AEAD_ENCRYPT_OUTPUT_SIZE_2_ARG - PSA_AEAD_DECRYPT_OUTPUT_SIZE -> PSA_AEAD_DECRYPT_OUTPUT_SIZE_2_ARG - PSA_AEAD_UPDATE_OUTPUT_SIZE -> PSA_AEAD_UPDATE_OUTPUT_SIZE_2_ARG - PSA_AEAD_FINISH_OUTPUT_SIZE -> PSA_AEAD_FINISH_OUTPUT_SIZE_1_ARG - PSA_AEAD_VERIFY_OUTPUT_SIZE -> PSA_AEAD_VERIFY_OUTPUT_SIZE_1_ARG * Implement one-shot cipher functions, psa_cipher_encrypt and psa_cipher_decrypt, according to the PSA Crypto API 1.0.0 specification. Requirement changes * The library now uses the %zu format specifier with the printf() family of functions, so requires a toolchain that supports it. This change does not affect the maintained LTS branches, so when contributing changes please bear this in mind and do not add them to backported code. Features * Add mbedtls_rsa_rsassa_pss_sign_ext() function allowing to generate a signature with a specific salt length. This function allows to validate test cases provided in the NIST's CAVP test suite. Contributed by Cédric Meuter in PR #3183. * Added support for built-in driver keys through the PSA opaque crypto driver interface. Refer to the documentation of MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS for more information. * Implement psa_sign_message() and psa_verify_message(). * The new function mbedtls_mpi_random() generates a random value in a given range uniformly. * Implement psa_mac_compute() and psa_mac_verify() as defined in the PSA Cryptograpy API 1.0.0 specification. * MBEDTLS_ECP_MAX_BITS is now determined automatically from the configured curves and no longer needs to be configured explicitly to save RAM. Security * Fix a bias in the generation of finite-field Diffie-Hellman-Merkle (DHM) private keys and of blinding values for DHM and elliptic curves (ECP) computations. Reported by FlorianF89 in #4245. * Fix a potential side channel vulnerability in ECDSA ephemeral key generation. An adversary who is capable of very precise timing measurements could learn partial information about the leading bits of the nonce used for the signature, allowing the recovery of the private key after observing a large number of signature operations. This completes a partial fix in Mbed TLS 2.20.0. * It was possible to configure MBEDTLS_ECP_MAX_BITS to a value that is too small, leading to buffer overflows in ECC operations. Fail the build in such a case. * An adversary with access to precise enough information about memory accesses (typically, an untrusted operating system attacking a secure enclave) could recover an RSA private key after observing the victim performing a single private-key operation. Found and reported by Zili KOU, Wenjian HE, Sharad Sinha, and Wei ZHANG. * An adversary with access to precise enough timing information (typically, a co-located process) could recover a Curve25519 or Curve448 static ECDH key after inputting a chosen public key and observing the victim performing the corresponding private-key operation. Found and reported by Leila Batina, Lukas Chmielewski, Björn Haase, Niels Samwel and Peter Schwabe. Bugfix * Add printf function attributes to mbedtls_debug_print_msg to ensure we get printf format specifier warnings. * Fix premature fopen() call in mbedtls_entropy_write_seed_file which may lead to seed file corruption in the case where the path to the seed file is equal to MBEDTLS_PLATFORM_STD_NV_SEED_FILE. Contributed by Victor Krasnoshchok in #3616. * PSA functions other than psa_open_key now return PSA_ERROR_INVALID_HANDLE rather than PSA_ERROR_DOES_NOT_EXIST for an invalid handle, bringing them in line with version 1.0.0 of the specification. Fix #4162. * PSA functions creating a key now return PSA_ERROR_INVALID_ARGUMENT rather than PSA_ERROR_INVALID_HANDLE when the identifier specified for the key to create is not valid, bringing them in line with version 1.0.0 of the specification. Fix #4271. * Fix some cases in the bignum module where the library constructed an unintended representation of the value 0 which was not processed correctly by some bignum operations. This could happen when mbedtls_mpi_read_string() was called on "-0", or when mbedtls_mpi_mul_mpi() and mbedtls_mpi_mul_int() was called with one of the arguments being negative and the other being 0. Fixes #4643. * Fix a bug in ECDSA that would cause it to fail when the hash is all-bits zero. Fixes #1792 * Fix a compilation error when MBEDTLS_ECP_RANDOMIZE_MXZ_ALT is defined. Fixes #4217. * Fix an incorrect error code when parsing a PKCS#8 private key. * In a TLS client, enforce the Diffie-Hellman minimum parameter size set with mbedtls_ssl_conf_dhm_min_bitlen() precisely. Before, the minimum size was rounded down to the nearest multiple of 8. * In library/net_sockets.c, _POSIX_C_SOURCE and _XOPEN_SOURCE are defined to specific values. If the code is used in a context where these are already defined, this can result in a compilation error. Instead, assume that if they are defined, the values will be adequate to build Mbed TLS. * The cipher suite TLS-RSA-WITH-CAMELLIA-256-GCM-SHA384 was not available when SHA-1 was disabled and was offered when SHA-1 was enabled but SHA-384 was disabled. Fix the dependency. Fixes #4472. * Do not offer SHA384 cipher suites when SHA-384 is disabled. Fixes #4499. * With MBEDTLS_PSA_CRYPTO_C disabled, some functions were getting built nonetheless, resulting in undefined reference errors when building a shared library. Reported by Guillermo Garcia M. in #4411. * Fix test suite code on platforms where int32_t is not int, such as Arm Cortex-M. Fixes #4530. * Fix some issues affecting MBEDTLS_ARIA_ALT implementations: a misplaced directive in a header and a missing initialization in the self-test. * Fix a missing initialization in the Camellia self-test, affecting MBEDTLS_CAMELLIA_ALT implementations. * Restore the ability to configure PSA via Mbed TLS options to support RSA key pair operations but exclude RSA key generation. When MBEDTLS_GENPRIME is not defined PSA will no longer attempt to use mbedtls_rsa_gen_key(). Fixes #4512. * Fix a regression introduced in 2.24.0 which broke (D)TLS CBC ciphersuites (when the encrypt-then-MAC extension is not in use) with some ALT implementations of the underlying hash (SHA-1, SHA-256, SHA-384), causing the affected side to wrongly reject valid messages. Fixes #4118. * Remove outdated check-config.h check that prevented implementing the timing module on Mbed OS. Fixes #4633. * Fix PSA_ALG_TLS12_PRF and PSA_ALG_TLS12_PSK_TO_MS being too permissive about missing inputs. * Fix mbedtls_net_poll() and mbedtls_net_recv_timeout() often failing with MBEDTLS_ERR_NET_POLL_FAILED on Windows. Fixes #4465. * Fix a resource leak in a test suite with an alternative AES implementation. Fixes #4176. * Fix a crash in mbedtls_mpi_debug_mpi on a bignum having 0 limbs. This could notably be triggered by setting the TLS debug level to 3 or above and using a Montgomery curve for the key exchange. Reported by lhuang04 in #4578. Fixes #4608. * psa_verify_hash() was relying on implementation-specific behavior of mbedtls_rsa_rsassa_pss_verify() and was causing failures in some _ALT implementations. This reliance is now removed. Fixes #3990. * Disallow inputs of length different from the corresponding hash when signing or verifying with PSA_ALG_RSA_PSS (The PSA Crypto API mandates that PSA_ALG_RSA_PSS uses the same hash throughout the algorithm.) * Fix a null pointer dereference when mbedtls_mpi_exp_mod() was called with A=0 represented with 0 limbs. Up to and including Mbed TLS 2.26, this bug could not be triggered by code that constructed A with one of the mbedtls_mpi_read_xxx functions (including in particular TLS code) since those always built an mpi object with at least one limb. Credit to OSS-Fuzz. Fixes #4641. * Fix mbedtls_mpi_gcd(G,A,B) when the value of B is zero. This had no effect on Mbed TLS's internal use of mbedtls_mpi_gcd(), but may affect applications that call mbedtls_mpi_gcd() directly. Fixes #4642. * The PSA API no longer allows the creation or destruction of keys with a read-only lifetime. The persistence level PSA_KEY_PERSISTENCE_READ_ONLY can now only be used as intended, for keys that cannot be modified through normal use of the API. * When MBEDTLS_PSA_CRYPTO_SPM is enabled, crypto_spe.h was not included in all the right places. Include it from crypto_platform.h, which is the natural place. Fixes #4649. * mbedtls_pk_sign() and mbedtls_pk_verify() and their extended and restartable variants now always honor the specified hash length if nonzero. Before, for RSA, hash_len was ignored in favor of the length of the specified hash algorithm. * Fix which alert is sent in some cases to conform to the applicable RFC: on an invalid Finished message value, an invalid max_fragment_length extension, or an unsupported extension used by the server. * Correct (change from 12 to 13 bytes) the value of the macro describing the maximum nonce length returned by psa_aead_generate_nonce(). Changes * Add extra printf compiler warning flags to builds. * Fix memsan build false positive in x509_crt.c with Clang 11 * Fix the setting of the read timeout in the DTLS sample programs. * Remove the AES sample application programs/aes/aescrypt2 which shows bad cryptographic practice. Fix #1906. * Alternative implementations of CMAC may now opt to not support 3DES as a CMAC block cipher, and still pass the CMAC self test. * Remove configs/config-psa-crypto.h, which was identical to the default configuration except for having some extra cryptographic mechanisms enabled and for unintended differences. This configuration was primarily intended to demonstrate the PSA API, and lost most of its usefulness when MBEDTLS_PSA_CRYPTO_C became enabled by default. * When building the test suites with GNU make, invoke python3 or python, not python2, which is no longer supported upstream. * When using session cache based session resumption on the server, double-check that custom session cache implementations return sessions which are consistent with the negotiated ciphersuite and compression method. * Fix build failure on MinGW toolchain when __USE_MING_ANSI_STDIO is on. When that flag is on, standard GNU C printf format specifiers should be used. * Reduce the default value of MBEDTLS_ECP_WINDOW_SIZE. This reduces RAM usage during ECC operations at a negligible performance cost. * mbedtls_mpi_read_binary(), mbedtls_mpi_read_binary_le() and mbedtls_mpi_read_string() now construct an mbedtls_mpi object with 0 limbs when their input has length 0. Note that this is an implementation detail and can change at any time, so this change should be transparent, but it may result in mbedtls_mpi_write_binary() or mbedtls_mpi_write_string() now writing an empty string where it previously wrote one or more zero digits when operating from values constructed with an mpi_read function and some mpi operations. * Implicitly add PSA_KEY_USAGE_SIGN_MESSAGE key usage policy flag when PSA_KEY_USAGE_SIGN_HASH flag is set and PSA_KEY_USAGE_VERIFY_MESSAGE flag when PSA_KEY_USAGE_VERIFY_HASH flag is set. This usage flag extension is also applied when loading a key from storage. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.17 2021/10/26 11:17:18 nia Exp $ d3 3 a5 3 BLAKE2s (mbedtls-2.28.1.tar.gz) = 3486a1a69c491996e86136474339c8f73f2fa168f2cb4a375efb42f7a44a9788 SHA512 (mbedtls-2.28.1.tar.gz) = cc75027ebbefb4ba1aecdc386cf6b60cceeceda79a474ff5ba67411e41aac9fc2c43c2fb0158be667f1b91e6c19082e17e4e61409acc1498b568f5efc7b00a2c Size (mbedtls-2.28.1.tar.gz) = 3914438 bytes @ 1.17 log @security: Replace RMD160 checksums with BLAKE2s checksums All checksums have been double-checked against existing RMD160 and SHA512 hashes Unfetchable distfiles (fetched conditionally?): ./security/cyrus-sasl/distinfo cyrus-sasl-dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d.patch.v2 @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.16 2021/10/07 14:54:02 nia Exp $ d3 3 a5 3 BLAKE2s (mbedtls-2.26.0.tar.gz) = 0b90a42ec8c54dd05261cf7e4c5c23d99dc69d0a4817e2e46cb980e582073c2c SHA512 (mbedtls-2.26.0.tar.gz) = 959f6dd0759bfd8dcc497a0527b8b9e9975adb9fee01461e6bcc37475cf9e4eae597687e05e077dfe51d0542c81bc3b90e6d9a692353dca331e020e02d642196 Size (mbedtls-2.26.0.tar.gz) = 4080986 bytes @ 1.16 log @security: Remove SHA1 hashes for distfiles @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.15 2021/05/02 08:16:13 nia Exp $ d3 1 a3 1 RMD160 (mbedtls-2.26.0.tar.gz) = c7c5ec41b4974d3b24897ac0d65ed3bcd50e50e8 @ 1.15 log @mbedtls: update to 2.26.0 This release of Mbed TLS provides bug fixes, minor enhancements and new features. This release includes fixes for security issues. API changes Renamed the PSA Crypto API output buffer size macros to bring them in line with version 1.0.0 of the specification. The API glue function mbedtls_ecc_group_of_psa() now takes the curve size in bits rather than bytes, with an additional flag to indicate if the size may have been rounded up to a whole number of bytes. Renamed the PSA Crypto API AEAD tag length macros to bring them in line with version 1.0.0 of the specification. Default behavior changes In mbedtls_rsa_context objects, the ver field was formerly documented as always 0. It is now reserved for internal purposes and may take different values. New deprecations PSA_KEY_EXPORT_MAX_SIZE, PSA_HASH_SIZE, PSA_MAC_FINAL_SIZE, PSA_BLOCK_CIPHER_BLOCK_SIZE, PSA_MAX_BLOCK_CIPHER_BLOCK_SIZE and PSA_ALG_TLS12_PSK_TO_MS_MAX_PSK_LEN have been renamed, and the old names deprecated. PSA_ALG_AEAD_WITH_DEFAULT_TAG_LENGTH and PSA_ALG_AEAD_WITH_TAG_LENGTH have been renamed, and the old names deprecated. Features The PSA crypto subsystem can now use HMAC_DRBG instead of CTR_DRBG. CTR_DRBG is used by default if it is available, but you can override this choice by setting MBEDTLS_PSA_HMAC_DRBG_MD_TYPE at compile time. Fix #3354. Automatic fallback to a software implementation of ECP when MBEDTLS_ECP_xxx_ALT accelerator hooks are in use can now be turned off through setting the new configuration flag MBEDTLS_ECP_NO_FALLBACK. The PSA crypto subsystem can now be configured to use less static RAM by tweaking the setting for the maximum amount of keys simultaneously in RAM. MBEDTLS_PSA_KEY_SLOT_COUNT sets the maximum number of volatile keys that can exist simultaneously. It has a sensible default if not overridden. Partial implementation of the PSA crypto driver interface: Mbed TLS can now use an external random generator instead of the library's own entropy collection and DRBG code. Enable MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG and see the documentation of mbedtls_psa_external_get_random() for details. Applications using both mbedtls_xxx and psa_xxx functions (for example, applications using TLS and MBEDTLS_USE_PSA_CRYPTO) can now use the PSA random generator with mbedtls_xxx functions. See the documentation of mbedtls_psa_get_random() for details. In the PSA API, the policy for a MAC or AEAD algorithm can specify a minimum MAC or tag length thanks to the new wildcards PSA_ALG_AT_LEAST_THIS_LENGTH_MAC and PSA_ALG_AEAD_WITH_AT_LEAST_THIS_LENGTH_TAG. Security Fix a security reduction in CTR_DRBG when the initial seeding obtained a nonce from entropy. Applications were affected if they called mbedtls_ctr_drbg_set_nonce_len(), if they called mbedtls_ctr_drbg_set_entropy_len() with a size that was 3/2 times the key length, or when the entropy module uses SHA-256 and CTR_DRBG uses AES-256. In such cases, a random nonce was necessary to achieve the advertised security strength, but the code incorrectly used a constant instead of entropy from the nonce. Found by John Stroebel in #3819 and fixed in #3973. Fix a buffer overflow in mbedtls_mpi_sub_abs() when calculating |A| - |B| where |B| is larger than |A| and has more limbs (so the function should return MBEDTLS_ERR_MPI_NEGATIVE_VALUE). Only applications calling mbedtls_mpi_sub_abs() directly are affected: all calls inside the library were safe since this function is only called with |A| >= |B|. Reported by Guido Vranken in #4042. Fix an errorneous estimation for an internal buffer in mbedtls_pk_write_key_pem(). If MBEDTLS_MPI_MAX_SIZE is set to an odd value the function might fail to write a private RSA keys of the largest supported size. Found by Daniel Otte, reported in #4093 and fixed in #4094. Fix a stack buffer overflow with mbedtls_net_poll() and mbedtls_net_recv_timeout() when given a file descriptor that is beyond FD_SETSIZE. Reported by FigBug in #4169. Guard against strong local side channel attack against base64 tables by making access aceess to them use constant flow code. Bugfix Fix use-after-scope error in programs/ssl/ssl_client2.c and ssl_server2.c Fix memory leak that occured when calling psa_close_key() on a wrapped key with MBEDTLS_PSA_CRYPTO_SE_C defined. Fix an incorrect error code if an RSA private operation glitched. Fix a memory leak in an error case in psa_generate_derived_key_internal(). Fix a resource leak in CTR_DRBG and HMAC_DRBG when MBEDTLS_THREADING_C is enabled, on platforms where initializing a mutex allocates resources. This was a regression introduced in the previous release. Reported in #4017, #4045 and #4071. Ensure that calling mbedtls_rsa_free() or mbedtls_entropy_free() twice is safe. This happens for RSA when some Mbed TLS library functions fail. Such a double-free was not safe when MBEDTLS_THREADING_C was enabled on platforms where freeing a mutex twice is not safe. Fix a resource leak in a bad-arguments case of mbedtls_rsa_gen_key() when MBEDTLS_THREADING_C is enabled on platforms where initializing a mutex allocates resources. Fixes a bug where, if the library was configured to include support for both the old SE interface and the new PSA driver interface, external keys were not loaded from storage. This was fixed by #3996. This change makes 'mbedtls_x509write_crt_set_basic_constraints' consistent with RFC 5280 4.2.1.9 which says: "Conforming CAs MUST include this extension in all CA certificates that contain public keys used to validate digital signatures on certificates and MUST mark the extension as critical in such certificates." Previous to this change, the extension was always marked as non-critical. This was fixed by #3698. Changes A new library C file psa_crypto_client.c has been created to contain the PSA code needed by a PSA crypto client when the PSA crypto implementation is not included into the library. On recent enough versions of FreeBSD and DragonFlyBSD, the entropy module now uses the getrandom syscall instead of reading from /dev/urandom. Who should update We recommend all users should update to take advantage of the bug fixes contained in this release at an appropriate point in their development lifecycle. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.14 2020/09/03 20:30:56 nia Exp $ a2 1 SHA1 (mbedtls-2.26.0.tar.gz) = 1cb65fb2fb37a1c6e4216205cc10bee60300c35e @ 1.14 log @mbedtls: Update to 2.24.0 = mbed TLS 2.24.0 branch released 2020-09-01 API changes * In the PSA API, rename the types of elliptic curve and Diffie-Hellman group families to psa_ecc_family_t and psa_dh_family_t, in line with the PSA Crypto API specification version 1.0.0. Rename associated macros as well: PSA_ECC_CURVE_xxx renamed to PSA_ECC_FAMILY_xxx PSA_DH_GROUP_xxx renamed to PSA_DH_FAMILY_xxx PSA_KEY_TYPE_GET_CURVE renamed to to PSA_KEY_TYPE_ECC_GET_FAMILY PSA_KEY_TYPE_GET_GROUP renamed to PSA_KEY_TYPE_DH_GET_FAMILY Default behavior changes * Stop storing persistent information about externally stored keys created through PSA Crypto with a volatile lifetime. Reported in #3288 and contributed by Steven Cooreman in #3382. Features * The new function mbedtls_ecp_write_key() exports private ECC keys back to a byte buffer. It is the inverse of the existing mbedtls_ecp_read_key(). * Support building on e2k (Elbrus) architecture: correctly enable -Wformat-signedness, and fix the code that causes signed-one-bit-field and sign-compare warnings. Contributed by makise-homura (Igor Molchanov) . Security * Fix a vulnerability in the verification of X.509 certificates when matching the expected common name (the cn argument of mbedtls_x509_crt_verify()) with the actual certificate name: when the subjecAltName extension is present, the expected name was compared to any name in that extension regardless of its type. This means that an attacker could for example impersonate a 4-bytes or 16-byte domain by getting a certificate for the corresponding IPv4 or IPv6 (this would require the attacker to control that IP address, though). Similar attacks using other subjectAltName name types might be possible. Found and reported by kFYatek in #3498. * When checking X.509 CRLs, a certificate was only considered as revoked if its revocationDate was in the past according to the local clock if available. In particular, on builds without MBEDTLS_HAVE_TIME_DATE, certificates were never considered as revoked. On builds with MBEDTLS_HAVE_TIME_DATE, an attacker able to control the local clock (for example, an untrusted OS attacking a secure enclave) could prevent revocation of certificates via CRLs. Fixed by no longer checking the revocationDate field, in accordance with RFC 5280. Reported by yuemonangong in #3340. Reported independently and fixed by Raoul Strackx and Jethro Beekman in #3433. * In (D)TLS record decryption, when using a CBC ciphersuites without the Encrypt-then-Mac extension, use constant code flow memory access patterns to extract and check the MAC. This is an improvement to the existing countermeasure against Lucky 13 attacks. The previous countermeasure was effective against network-based attackers, but less so against local attackers. The new countermeasure defends against local attackers, even if they have access to fine-grained measurements. In particular, this fixes a local Lucky 13 cache attack found and reported by Tuba Yavuz, Farhaan Fowze, Ken (Yihan) Bai, Grant Hernandez, and Kevin Butler (University of Florida) and Dave Tian (Purdue University). * Fix side channel in RSA private key operations and static (finite-field) Diffie-Hellman. An adversary with precise enough timing and memory access information (typically an untrusted operating system attacking a secure enclave) could bypass an existing counter-measure (base blinding) and potentially fully recover the private key. * Fix a 1-byte buffer overread in mbedtls_x509_crl_parse_der(). Credit to OSS-Fuzz for detecting the problem and to Philippe Antoine for pinpointing the problematic code. * Zeroising of plaintext buffers in mbedtls_ssl_read() to erase unused application data from memory. Reported in #689 by Johan Uppman Bruce of Sectra. Bugfix * Library files installed after a CMake build no longer have execute permission. * Use local labels in mbedtls_padlock_has_support() to fix an invalid symbol redefinition if the function is inlined. Reported in #3451 and fix contributed in #3452 by okhowang. * Fix the endianness of Curve25519 keys imported/exported through the PSA APIs. psa_import_key and psa_export_key will now correctly expect/output Montgomery keys in little-endian as defined by RFC7748. Contributed by Steven Cooreman in #3425. * Fix build errors when the only enabled elliptic curves are Montgomery curves. Raised by signpainter in #941 and by Taiki-San in #1412. This also fixes missing declarations reported by Steven Cooreman in #1147. * Fix self-test failure when the only enabled short Weierstrass elliptic curve is secp192k1. Fixes #2017. * PSA key import will now correctly import a Curve25519/Curve448 public key instead of erroring out. Contributed by Steven Cooreman in #3492. * Use arc4random_buf on NetBSD instead of rand implementation with cyclical lower bits. Fix contributed in #3540. * Fix a memory leak in mbedtls_md_setup() when using HMAC under low memory conditions. Reported and fix suggested by Guido Vranken in #3486. * Fix bug in redirection of unit test outputs on platforms where stdout is defined as a macro. First reported in #2311 and fix contributed in #3528. Changes * Only pass -Wformat-signedness to versions of GCC that support it. Reported in #3478 and fix contributed in #3479 by okhowang. * Reduce the stack consumption of mbedtls_x509write_csr_der() which previously could lead to stack overflow on constrained devices. Contributed by Doru Gucea and Simon Leet in #3464. * Undefine the ASSERT macro before defining it locally, in case it is defined in a platform header. Contributed by Abdelatif Guettouche in #3557. * Update copyright notices to use Linux Foundation guidance. As a result, the copyright of contributors other than Arm is now acknowledged, and the years of publishing are no longer tracked in the source files. This also eliminates the need for the lines declaring the files to be part of MbedTLS. Fixes #3457. * Add the command line parameter key_pwd to the ssl_client2 and ssl_server2 example applications which allows to provide a password for the key file specified through the existing key_file argument. This allows the use of these applications with password-protected key files. Analogously but for ssl_server2 only, add the command line parameter key_pwd2 which allows to set a password for the key file provided through the existing key_file2 argument. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.13 2020/07/07 11:16:10 nia Exp $ d3 4 a6 4 SHA1 (mbedtls-2.24.0.tar.gz) = 1bd2b5f5b8b8f970331a6da0065d64b424abdbed RMD160 (mbedtls-2.24.0.tar.gz) = 2cc3e3460d75ec4a6c8f11e524c4afff5f78cb40 SHA512 (mbedtls-2.24.0.tar.gz) = 5437ea57eb8b8af9446a796876aa2bfe3c59c88f926b1638c7e8a021a8bef9f4bc6cb1b254e7387e2afe095bd27c518060719726bbaf5478582a56c34315cfb8 Size (mbedtls-2.24.0.tar.gz) = 3912697 bytes @ 1.13 log @mbedtls: Update to 2.23.0 = mbed TLS 2.23.0 branch released 2020-07-01 Default behavior changes * In the experimental PSA secure element interface, change the encoding of key lifetimes to encode a persistence level and the location. Although C prototypes do not effectively change, code calling psa_register_se_driver() must be modified to pass the driver's location instead of the keys' lifetime. If the library is upgraded on an existing device, keys created with the old lifetime value will not be readable or removable through Mbed TLS after the upgrade. Features * New functions in the error module return constant strings for high- and low-level error codes, complementing mbedtls_strerror() which constructs a string for any error code, including compound ones, but requires a writable buffer. Contributed by Gaurav Aggarwal in #3176. * The new utility programs/ssl/ssl_context_info prints a human-readable dump of an SSL context saved with mbedtls_ssl_context_save(). * Add support for midipix, a POSIX layer for Microsoft Windows. * Add new mbedtls_x509_crt_parse_der_with_ext_cb() routine which allows parsing unsupported certificate extensions via user provided callback. Contributed by Nicola Di Lieto in #3243 as a solution to #3241. * Pass the "certificate policies" extension to the callback supplied to mbedtls_x509_crt_parse_der_with_ext_cb() if it contains unsupported policies (#3419). * Added support to entropy_poll for the kern.arandom syscall supported on some BSD systems. Contributed by Nia Alarie in #3423. * Add support for Windows 2000 in net_sockets. Contributed by opatomic. #3239 Security * Fix a side channel vulnerability in modular exponentiation that could reveal an RSA private key used in a secure enclave. Noticed by Sangho Lee, Ming-Wei Shih, Prasun Gera, Taesoo Kim and Hyesoon Kim (Georgia Institute of Technology); and Marcus Peinado (Microsoft Research). Reported by Raoul Strackx (Fortanix) in #3394. * Fix side channel in mbedtls_ecp_check_pub_priv() and mbedtls_pk_parse_key() / mbedtls_pk_parse_keyfile() (when loading a private key that didn't include the uncompressed public key), as well as mbedtls_ecp_mul() / mbedtls_ecp_mul_restartable() when called with a NULL f_rng argument. An attacker with access to precise enough timing and memory access information (typically an untrusted operating system attacking a secure enclave) could fully recover the ECC private key. Found and reported by Alejandro Cabrera Aldaya and Billy Brumley. * Fix issue in Lucky 13 counter-measure that could make it ineffective when hardware accelerators were used (using one of the MBEDTLS_SHAxxx_ALT macros). This would cause the original Lucky 13 attack to be possible in those configurations, allowing an active network attacker to recover plaintext after repeated timing measurements under some conditions. Reported and fix suggested by Luc Perneel in #3246. Bugfix * Fix the Visual Studio Release x64 build configuration for mbedtls itself. Completes a previous fix in Mbed TLS 2.19 that only fixed the build for the example programs. Reported in #1430 and fix contributed by irwir. * Fix undefined behavior in X.509 certificate parsing if the pathLenConstraint basic constraint value is equal to INT_MAX. The actual effect with almost every compiler is the intended behavior, so this is unlikely to be exploitable anywhere. #3192 * Fix issue with a detected HW accelerated record error not being exposed due to shadowed variable. Contributed by Sander Visser in #3310. * Avoid NULL pointer dereferencing if mbedtls_ssl_free() is called with a NULL pointer argument. Contributed by Sander Visser in #3312. * Fix potential linker errors on dual world platforms by inlining mbedtls_gcc_group_to_psa(). This allows the pk.c module to link separately from psa_crypto.c. Fixes #3300. * Remove dead code in X.509 certificate parsing. Contributed by irwir in #2855. * Include asn1.h in error.c. Fixes #3328 reported by David Hu. * Fix potential memory leaks in ecp_randomize_jac() and ecp_randomize_mxz() when PRNG function fails. Contributed by Jonas Lejeune in #3318. * Remove unused macros from MSVC projects. Reported in #3297 and fix submitted in #3333 by irwir. * Add additional bounds checks in ssl_write_client_hello() preventing output buffer overflow if the configuration declared a buffer that was too small. * Set _POSIX_C_SOURCE to at least 200112L in C99 code. Reported in #3420 and fix submitted in #3421 by Nia Alarie. * Fix building library/net_sockets.c and the ssl_mail_client program on NetBSD. Contributed by Nia Alarie in #3422. * Fix false positive uninitialised variable reported by cpp-check. Contributed by Sander Visser in #3311. * Update iv and len context pointers manually when reallocating buffers using the MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH feature. This caused issues when receiving a connection with CID, when these fields were shifted in ssl_parse_record_header(). Changes * Fix warnings about signedness issues in format strings. The build is now clean of -Wformat-signedness warnings. Contributed by Kenneth Soerensen in #3153. * Fix minor performance issue in operations on Curve25519 caused by using a suboptimal modular reduction in one place. Found and fix contributed by Aurelien Jarno in #3209. * Combine identical cases in switch statements in md.c. Contributed by irwir in #3208. * Simplify a bounds check in ssl_write_certificate_request(). Contributed by irwir in #3150. * Unify the example programs termination to call mbedtls_exit() instead of using a return command. This has been done to enable customization of the behavior in bare metal environments. * Fix mbedtls_x509_dn_gets to escape non-ASCII characters as "?". Contributed by Koh M. Nakagawa in #3326. * Use FindPython3 when cmake version >= 3.15.0 * Abort the ClientHello writing function as soon as some extension doesn't fit into the record buffer. Previously, such extensions were silently dropped. As a consequence, the TLS handshake now fails when the output buffer is not large enough to hold the ClientHello. * The unit tests now rely on header files in tests/include/test and source files in tests/src. When building with make or cmake, the files in tests/src are compiled and the resulting object linked into each test executable. * The ECP module, enabled by `MBEDTLS_ECP_C`, now depends on `MBEDTLS_CTR_DRBG_C` or `MBEDTLS_HMAC_DRBG_C` for some side-channel coutermeasures. If side channels are not a concern, this dependency can be avoided by enabling the new option `MBEDTLS_ECP_NO_INTERNAL_RNG`. * Align MSVC error flag with GCC and Clang. Contributed by Carlos Gomes Martinho. #3147 * Remove superfluous assignment in mbedtls_ssl_parse_certificate(). Reported in #3182 and fix submitted by irwir. #3217 * Fix typo in XTS tests. Reported and fix submitted by Kxuan. #3319 @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.12 2020/06/29 12:39:36 nia Exp $ d3 4 a6 4 SHA1 (mbedtls-2.23.0.tar.gz) = 5b0f0f71e96dfbdf93b8f9582df76cbd63faaacf RMD160 (mbedtls-2.23.0.tar.gz) = 1b5fc17ec0b8df90c8dc8f5e6bef2ddd7fc4d477 SHA512 (mbedtls-2.23.0.tar.gz) = c2a04f659bf63522f10f6660c2d196d7f39a057ff5a382734ba3b839f463ead4e5c9bc0d21fb909d56fcd2ee4c711248be14861f388cd383385484d364247634 Size (mbedtls-2.23.0.tar.gz) = 3877508 bytes @ 1.12 log @mbedtls: Add KERN_ARND support. Motivation: the default behaviour of reopening /dev/urandom repeatedly for every 128 bytes of entropy required is _exceedingly_ slow on NetBSD. Not helped is using fread(), which assumes a long-lived file and buffers excessively. This change makes the standard gen_entropy tool run in milliseconds instead of seconds when it generates 48K of randomness. Not only that, but sysctl is a lot more robust in e.g. chroots, resource limited processes, etc. Risk: On NetBSD, the security properties of the previous and current behaviour are identical. Upstreamed: https://github.com/ARMmbed/mbedtls/pull/3423 Bump PKGREVISION. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.11 2020/06/11 11:43:50 nia Exp $ d3 4 a6 9 SHA1 (mbedtls-2.16.6-apache.tgz) = 3cb5b681597a5bd798d31038c129c0dc911d8a2c RMD160 (mbedtls-2.16.6-apache.tgz) = da5ede944292874afdb24a8fe21c643b34255206 SHA512 (mbedtls-2.16.6-apache.tgz) = a0c48b694d7bc70256d26c44bfb2ac802428560b02e50fe2e47762bc595e2c7b8fac934badb3452acb01d8a54386eafae0ff2894320d24ab7554f1c8e6cb4bcf Size (mbedtls-2.16.6-apache.tgz) = 2699220 bytes SHA1 (patch-library_entropy__poll.c) = 6ab7d7b7e499f0ad9dcbaff274675c03b67f14ec SHA1 (patch-library_net__sockets.c) = dc1b304432a2837f72035245a3bc8f1cfcaacbd9 SHA1 (patch-programs_aes_aescrypt2.c) = ffce071071ba00c37441973e2305d93a2374c748 SHA1 (patch-programs_aes_crypt__and__hash.c) = 29bd90a0cb2cb4d970c57e57aad6318949479137 SHA1 (patch-programs_ssl_ssl__mail__client.c) = 739bae07a927977fc701e2decaefaa464c38d2bb @ 1.11 log @mbedtls: Update patches. Add links to PRs. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.10 2020/06/02 15:07:59 nia Exp $ d7 1 @ 1.10 log @mbedtls: attempt to fix build on SunOS @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.9 2020/04/18 14:21:56 nia Exp $ d7 4 a10 3 SHA1 (patch-library_net__sockets.c) = cd8f9cf84947800eb73d004847789626511ceb35 SHA1 (patch-programs_aes_aescrypt2.c) = 216cc7cb0b5530897ea5ca194128b8928def5f16 SHA1 (patch-programs_aes_crypt__and__hash.c) = 3c2d72abf89d5e29d434abb6d745c0d086496556 @ 1.9 log @mbedtls: Update to 2.16.6 = mbed TLS 2.16.6 branch released 2020-04-14 Security * Fix side channel in ECC code that allowed an adversary with access to precise enough timing and memory access information (typically an untrusted operating system attacking a secure enclave) to fully recover an ECDSA private key. Found and reported by Alejandro Cabrera Aldaya, Billy Brumley and Cesar Pereida Garcia. CVE-2020-10932 * Fix a potentially remotely exploitable buffer overread in a DTLS client when parsing the Hello Verify Request message. Bugfix * Fix compilation failure when both MBEDTLS_SSL_PROTO_DTLS and MBEDTLS_SSL_HW_RECORD_ACCEL are enabled. * Fix a function name in a debug message. Contributed by Ercan Ozturk in #3013. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.8 2020/02/29 11:45:02 nia Exp $ d8 2 @ 1.8 log @mbedtls: Update to 2.16.5 = mbed TLS 2.16.5 branch released 2020-02-20 Security * Fix potential memory overread when performing an ECDSA signature operation. The overread only happens with cryptographically low probability (of the order of 2^-n where n is the bitsize of the curve) unless the RNG is broken, and could result in information disclosure or denial of service (application crash or extra resource consumption). Found by Auke Zeilstra and Peter Schwabe, using static analysis. * To avoid a side channel vulnerability when parsing an RSA private key, read all the CRT parameters from the DER structure rather than reconstructing them. Found by Alejandro Cabrera Aldaya and Billy Bob Brumley. Reported and fix contributed by Jack Lloyd. ARMmbed/mbed-crypto#352 Bugfix * Fix an unchecked call to mbedtls_md() in the x509write module. * Fix a bug in mbedtls_pk_parse_key() that would cause it to accept some RSA keys that would later be rejected by functions expecting private keys. Found by Catena cyber using oss-fuzz (issue 20467). * Fix a bug in mbedtls_pk_parse_key() that would cause it to accept some RSA keys with invalid values by silently fixing those values. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.7 2020/02/20 15:27:31 nia Exp $ d3 4 a6 4 SHA1 (mbedtls-2.16.5-apache.tgz) = c36962183e05467aa1dadafcaacf90216a737866 RMD160 (mbedtls-2.16.5-apache.tgz) = 92e0ffc42f519518472048109c0caa138a7ebe81 SHA512 (mbedtls-2.16.5-apache.tgz) = 89a6a2cc6fe8b568396caed5fe8428ff5debf833c643b0e4c3144fdc474b127d156d8f5e5ea47a8b5d6522a2689e91a57abc533390b3f54aaa2c756ef6d3baf7 Size (mbedtls-2.16.5-apache.tgz) = 2695416 bytes @ 1.8.2.1 log @Pullup ticket #6170 - requested by nia security/mbedtls: security fix Revisions pulled up: - security/mbedtls/Makefile 1.14 - security/mbedtls/distinfo 1.9 --- Module Name: pkgsrc Committed By: nia Date: Sat Apr 18 14:21:56 UTC 2020 Modified Files: pkgsrc/security/mbedtls: Makefile distinfo Log Message: mbedtls: Update to 2.16.6 = mbed TLS 2.16.6 branch released 2020-04-14 Security * Fix side channel in ECC code that allowed an adversary with access to precise enough timing and memory access information (typically an untrusted operating system attacking a secure enclave) to fully recover an ECDSA private key. Found and reported by Alejandro Cabrera Aldaya, Billy Brumley and Cesar Pereida Garcia. CVE-2020-10932 * Fix a potentially remotely exploitable buffer overread in a DTLS client when parsing the Hello Verify Request message. Bugfix * Fix compilation failure when both MBEDTLS_SSL_PROTO_DTLS and MBEDTLS_SSL_HW_RECORD_ACCEL are enabled. * Fix a function name in a debug message. Contributed by Ercan Ozturk in #3013. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.8 2020/02/29 11:45:02 nia Exp $ d3 4 a6 4 SHA1 (mbedtls-2.16.6-apache.tgz) = 3cb5b681597a5bd798d31038c129c0dc911d8a2c RMD160 (mbedtls-2.16.6-apache.tgz) = da5ede944292874afdb24a8fe21c643b34255206 SHA512 (mbedtls-2.16.6-apache.tgz) = a0c48b694d7bc70256d26c44bfb2ac802428560b02e50fe2e47762bc595e2c7b8fac934badb3452acb01d8a54386eafae0ff2894320d24ab7554f1c8e6cb4bcf Size (mbedtls-2.16.6-apache.tgz) = 2699220 bytes @ 1.7 log @mbedtls: Update to 2.16.4 Security * Fix side channel vulnerability in ECDSA. Our bignum implementation is not constant time/constant trace, so side channel attacks can retrieve the blinded value, factor it (as it is smaller than RSA keys and not guaranteed to have only large prime factors), and then, by brute force, recover the key. Reported by Alejandro Cabrera Aldaya and Billy Brumley. * Zeroize local variables in mbedtls_internal_aes_encrypt() and mbedtls_internal_aes_decrypt() before exiting the function. The value of these variables can be used to recover the last round key. To follow best practice and to limit the impact of buffer overread vulnerabilities (like Heartbleed) we need to zeroize them before exiting the function. Issue reported by Tuba Yavuz, Farhaan Fowze, Ken (Yihang) Bai, Grant Hernandez, and Kevin Butler (University of Florida) and Dave Tian (Purdue University). * Fix side channel vulnerability in ECDSA key generation. Obtaining precise timings on the comparison in the key generation enabled the attacker to learn leading bits of the ephemeral key used during ECDSA signatures and to recover the private key. Reported by Jeremy Dubeuf. * Catch failure of AES functions in mbedtls_ctr_drbg_random(). Uncaught failures could happen with alternative implementations of AES. Bug reported and fix proposed by Johan Uppman Bruce and Christoffer Lauri, Sectra. Bugfix * Remove redundant line for getting the bitlen of a bignum, since the variable holding the returned value is overwritten a line after. Found by irwir in #2377. * Support mbedtls_hmac_drbg_set_entropy_len() and mbedtls_ctr_drbg_set_entropy_len() before the DRBG is seeded. Before, the initial seeding always reset the entropy length to the compile-time default. Changes * Add unit tests for AES-GCM when called through mbedtls_cipher_auth_xxx() from the cipher abstraction layer. Fixes #2198. * Clarify how the interface of the CTR_DRBG and HMAC modules relates to NIST SP 800-90A. In particular CTR_DRBG requires an explicit nonce to achieve a 256-bit strength if MBEDTLS_ENTROPY_FORCE_SHA256 is set. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.6 2019/10/01 17:44:11 nia Exp $ d3 4 a6 4 SHA1 (mbedtls-2.16.4-apache.tgz) = e446cbac7d24fc3ff1b1c4ee7c021694ede86db6 RMD160 (mbedtls-2.16.4-apache.tgz) = 1b3f927dc2ff886bca1877beb4808a35a7414e8a SHA512 (mbedtls-2.16.4-apache.tgz) = 7b72a83c941bcb2b6b7710e00e68e390ee3c856eff957ff1608fe9d59c4d40b36f536283a83d3a1c4fe53dc268e877a56360f3654d226f967a881287df3dcbe7 Size (mbedtls-2.16.4-apache.tgz) = 2692484 bytes @ 1.6 log @mbedtls: Update to 2.16.3 = mbed TLS 2.16.3 branch released 2019-09-06 Security * Fix a missing error detection in ECJPAKE. This could have caused a predictable shared secret if a hardware accelerator failed and the other side of the key exchange had a similar bug. * The deterministic ECDSA calculation reused the scheme's HMAC-DRBG to implement blinding. Because of this for the same key and message the same blinding value was generated. This reduced the effectiveness of the countermeasure and leaked information about the private key through side channels. Reported by Jack Lloyd. * When writing a private EC key, use a constant size for the private value, as specified in RFC 5915. Previously, the value was written as an ASN.1 INTEGER, which caused the size of the key to leak about 1 bit of information on average and could cause the value to be 1 byte too large for the output buffer. API Changes * The new function mbedtls_ecdsa_sign_det_ext() is similar to mbedtls_ecdsa_sign_det() but allows passing an external RNG for the purpose of blinding. Bugfix * Fix to allow building test suites with any warning that detects unused functions. Fixes #1628. * Fix typo in net_would_block(). Fixes #528 reported by github-monoculture. * Remove redundant include file in timing.c. Fixes #2640 reported by irwir. * Fix Visual Studio Release x64 build configuration by inheriting PlatformToolset from the project configuration. Fixes #1430 reported by irwir. * Enable Suite B with subset of ECP curves. Make sure the code compiles even if some curves are not defined. Fixes #1591 reported by dbedev. * Fix misuse of signed arithmetic in the HAVEGE module. #2598 * Update test certificates that were about to expire. Reported by Bernhard M. Wiedemann in #2357. * Fix the build on ARMv5TE in ARM mode to not use assembly instructions that are only available in Thumb mode. Fix contributed by Aurelien Jarno in #2169. * Fix undefined memset(NULL) call in test_suite_nist_kw. * Make NV seed test support MBEDTLS_ENTROPY_FORCE_SHA256. * Fix propagation of restart contexts in restartable EC operations. This could previously lead to segmentation faults in builds using an address-sanitizer and enabling but not using MBEDTLS_ECP_RESTARTABLE. * Fix memory leak in in mpi_miller_rabin(). Contributed by Jens Wiklander in #2363 * Improve code clarity in x509_crt module, removing false-positive uninitialized variable warnings on some recent toolchains (GCC8, etc). Discovered and fixed by Andy Gross (Linaro), #2392. * Zero length buffer check for undefined behavior in mbedtls_platform_zeroize(). Fixes ARMmbed/mbed-crypto#49. * Fix bug in endianness conversion in bignum module. This lead to functionally incorrect code on bigendian systems which don't have __BYTE_ORDER__ defined. Reported by Brendan Shanks. Fixes #2622. Changes * Make it easier to define MBEDTLS_PARAM_FAILED as assert (which config.h suggests). #2671 * Make `make clean` clean all programs always. Fixes #1862. = mbed TLS 2.16.2 branch released 2019-06-11 Security * Make mbedtls_ecdh_get_params return an error if the second key belongs to a different group from the first. Before, if an application passed keys that belonged to different group, the first key's data was interpreted according to the second group, which could lead to either an error or a meaningless output from mbedtls_ecdh_get_params. In the latter case, this could expose at most 5 bits of the private key. Bugfix * Server's RSA certificate in certs.c was SHA-1 signed. In the default mbedTLS configuration only SHA-2 signed certificates are accepted. This certificate is used in the demo server programs, which lead the client programs to fail at the peer's certificate verification due to an unacceptable hash signature. The certificate has been updated to one that is SHA-256 signed. Fix contributed by Illya Gerasymchuk. * Fix private key DER output in the key_app_writer example. File contents were shifted by one byte, creating an invalid ASN.1 tag. Fixed by Christian Walther in #2239. * Fix potential memory leak in X.509 self test. Found and fixed by Junhwan Park, #2106. * Reduce stack usage of hkdf tests. Fixes #2195. * Fix 1-byte buffer overflow in mbedtls_mpi_write_string() when used with negative inputs. Found by Guido Vranken in #2404. Credit to OSS-Fuzz. * Fix bugs in the AEAD test suite which would be exposed by ciphers which either used both encrypt and decrypt key schedules, or which perform padding. GCM and CCM were not affected. Fixed by Jack Lloyd. * Fix incorrect default port number in ssl_mail_client example's usage. Found and fixed by irwir. #2337 * Add missing parentheses around parameters in the definition of the public macro MBEDTLS_X509_ID_FLAG. This could lead to invalid evaluation in case operators binding less strongly than subtraction were used for the parameter. * Add a check for MBEDTLS_X509_CRL_PARSE_C in ssl_server2, guarding the crl sni entry parameter. Reported by inestlerode in #560. * Add DER-encoded test CRTs to library/certs.c, allowing the example programs ssl_server2 and ssl_client2 to be run if MBEDTLS_FS_IO and MBEDTLS_PEM_PARSE_C are unset. Fixes #2254. * Fix missing bounds checks in X.509 parsing functions that could lead to successful parsing of ill-formed X.509 CRTs. Fixes #2437. * Fix multiple X.509 functions previously returning ASN.1 low-level error codes to always wrap these codes into X.509 high level error codes before returning. Fixes #2431. Changes * Return from various debugging routines immediately if the provided SSL context is unset. * Remove dead code from bignum.c in the default configuration. Found by Coverity, reported and fixed by Peter Kolbus (Garmin). Fixes #2309. * Add test for minimal value of MBEDTLS_MPI_WINDOW_SIZE to all.sh. Contributed by Peter Kolbus (Garmin). * Change wording in the `mbedtls_ssl_conf_max_frag_len()`'s documentation to improve clarity. Fixes #2258. * Replace multiple uses of MD2 by SHA-256 in X.509 test suite. Fixes #821. = mbed TLS 2.16.1 branch released 2019-03-19 Features * Add MBEDTLS_REMOVE_3DES_CIPHERSUITES to allow removing 3DES ciphersuites from the default list (enabled by default). See https://sweet32.info/SWEET32_CCS16.pdf. Bugfix * Fix a compilation issue with mbedtls_ecp_restart_ctx not being defined when MBEDTLS_ECP_ALT is defined. Reported by jwhui. Fixes #2242. * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined. Raised as a comment in #1996. * Reduce the stack consumption of mbedtls_mpi_fill_random() which could previously lead to a stack overflow on constrained targets. * Add `MBEDTLS_SELF_TEST` for the mbedtls_self_test functions in the header files, which missed the precompilation check. #971 * Fix clobber list in MIPS assembly for large integer multiplication. Previously, this could lead to functionally incorrect assembly being produced by some optimizing compilers, showing up as failures in e.g. RSA or ECC signature operations. Reported in #1722, fix suggested by Aurelien Jarno and submitted by Jeffrey Martin. * Fix signed-to-unsigned integer conversion warning in X.509 module. Fixes #2212. * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion. Fixes #2190. * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326. * Remove the mbedtls namespacing from the header file, to fix a "file not found" build error. Fixed by Haijun Gu #2319. * Fix returning the value 1 when mbedtls_ecdsa_genkey failed. * Fix false failure in all.sh when backup files exist in include/mbedtls (e.g. config.h.bak). Fixed by Peter Kolbus (Garmin) #2407. * Ensure that unused bits are zero when writing ASN.1 bitstrings when using mbedtls_asn1_write_bitstring(). * Fix issue when writing the named bitstrings in KeyUsage and NsCertType extensions in CSRs and CRTs that caused these bitstrings to not be encoded correctly as trailing zeroes were not accounted for as unused bits in the leading content octet. Fixes #1610. Changes * Include configuration file in all header files that use configuration, instead of relying on other header files that they include. Inserted as an enhancement for #1371 * Add support for alternative CSR headers, as used by Microsoft and defined in RFC 7468. Found by Michael Ernst. Fixes #767. * Fix configuration queries in ssl-opt.h. #2030 * Ensure that ssl-opt.h can be run in OS X. #2029 * Reduce the complexity of the timing tests. They were assuming more than the underlying OS actually guarantees. * Re-enable certain interoperability tests in ssl-opt.sh which had previously been disabled for lack of a sufficiently recent version of GnuTLS on the CI. * Ciphersuites based on 3DES now have the lowest priority by default when they are enabled. = mbed TLS 2.16.0 branch released 2018-12-21 Features * Add a new config.h option of MBEDTLS_CHECK_PARAMS that enables validation of parameters in the API. This allows detection of obvious misuses of the API, such as passing NULL pointers. The API of existing functions hasn't changed, but requirements on parameters have been made more explicit in the documentation. See the corresponding API documentation for each function to see for which parameter values it is defined. This feature is disabled by default. See its API documentation in config.h for additional steps you have to take when enabling it. API Changes * The following functions in the random generator modules have been deprecated and replaced as shown below. The new functions change the return type from void to int to allow returning error codes when using MBEDTLS__ALT for the underlying AES or message digest primitive. Fixes #1798. mbedtls_ctr_drbg_update() -> mbedtls_ctr_drbg_update_ret() mbedtls_hmac_drbg_update() -> mbedtls_hmac_drbg_update_ret() * Extend ECDH interface to enable alternative implementations. * Deprecate error codes of the form MBEDTLS_ERR_xxx_INVALID_KEY_LENGTH for ARIA, CAMELLIA and Blowfish. These error codes will be replaced by the more generic per-module error codes MBEDTLS_ERR_xxx_BAD_INPUT_DATA. * Additional parameter validation checks have been added for the following modules - AES, ARIA, Blowfish, CAMELLIA, CCM, GCM, DHM, ECP, ECDSA, ECDH, ECJPAKE, SHA, Chacha20 and Poly1305, cipher, pk, RSA, and MPI. Where modules have had parameter validation added, existing parameter checks may have changed. Some modules, such as Chacha20 had existing parameter validation whereas other modules had little. This has now been changed so that the same level of validation is present in all modules, and that it is now optional with the MBEDTLS_CHECK_PARAMS flag which by default is off. That means that checks which were previously present by default will no longer be. New deprecations * Deprecate mbedtls_ctr_drbg_update and mbedtls_hmac_drbg_update in favor of functions that can return an error code. Bugfix * Fix for Clang, which was reporting a warning for the bignum.c inline assembly for AMD64 targets creating string literals greater than those permitted by the ISO C99 standard. Found by Aaron Jones. Fixes #482. * Fix runtime error in `mbedtls_platform_entropy_poll()` when run through qemu user emulation. Reported and fix suggested by randombit in #1212. Fixes #1212. * Fix an unsafe bounds check when restoring an SSL session from a ticket. This could lead to a buffer overflow, but only in case ticket authentication was broken. Reported and fix suggested by Guido Vranken in #659. * Add explicit integer to enumeration type casts to example program programs/pkey/gen_key which previously led to compilation failure on some toolchains. Reported by phoenixmcallister. Fixes #2170. * Fix double initialization of ECC hardware that made some accelerators hang. * Clarify documentation of mbedtls_ssl_set_own_cert() regarding the absence of check for certificate/key matching. Reported by Attila Molnar, #507. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.5 2018/12/21 09:43:00 wiz Exp $ d3 4 a6 4 SHA1 (mbedtls-2.16.3-apache.tgz) = dce8550f8f9465f3aea44cb7d0f9d0ba8140034a RMD160 (mbedtls-2.16.3-apache.tgz) = 611635dce5ac99372272dd5c6edcb64d886f6e3b SHA512 (mbedtls-2.16.3-apache.tgz) = 62b984d04570334e740ff8b857b4dad73804a4d0aec22b224cb813eb8a6a4b2ec9bff3126c198552e030da94201fd98ed764e8b9f53056e2f94a51dfdbb47cdd Size (mbedtls-2.16.3-apache.tgz) = 2553709 bytes @ 1.6.4.1 log @Pullup ticket #6140 - requested by nia security/mbedtls: security fix Revisions pulled up: - security/mbedtls/Makefile 1.12 - security/mbedtls/PLIST 1.6 - security/mbedtls/distinfo 1.8 --- Module Name: pkgsrc Committed By: nia Date: Sat Feb 29 11:45:02 UTC 2020 Modified Files: pkgsrc/security/mbedtls: Makefile PLIST distinfo Log Message: mbedtls: Update to 2.16.5 = mbed TLS 2.16.5 branch released 2020-02-20 Security * Fix potential memory overread when performing an ECDSA signature operation. The overread only happens with cryptographically low probability (of the order of 2^-n where n is the bitsize of the curve) unless the RNG is broken, and could result in information disclosure or denial of service (application crash or extra resource consumption). Found by Auke Zeilstra and Peter Schwabe, using static analysis. * To avoid a side channel vulnerability when parsing an RSA private key, read all the CRT parameters from the DER structure rather than reconstructing them. Found by Alejandro Cabrera Aldaya and Billy Bob Brumley. Reported and fix contributed by Jack Lloyd. ARMmbed/mbed-crypto#352 Bugfix * Fix an unchecked call to mbedtls_md() in the x509write module. * Fix a bug in mbedtls_pk_parse_key() that would cause it to accept some RSA keys that would later be rejected by functions expecting private keys. Found by Catena cyber using oss-fuzz (issue 20467). * Fix a bug in mbedtls_pk_parse_key() that would cause it to accept some RSA keys with invalid values by silently fixing those values. @ text @d1 1 a1 1 $NetBSD$ d3 4 a6 4 SHA1 (mbedtls-2.16.5-apache.tgz) = c36962183e05467aa1dadafcaacf90216a737866 RMD160 (mbedtls-2.16.5-apache.tgz) = 92e0ffc42f519518472048109c0caa138a7ebe81 SHA512 (mbedtls-2.16.5-apache.tgz) = 89a6a2cc6fe8b568396caed5fe8428ff5debf833c643b0e4c3144fdc474b127d156d8f5e5ea47a8b5d6522a2689e91a57abc533390b3f54aaa2c756ef6d3baf7 Size (mbedtls-2.16.5-apache.tgz) = 2695416 bytes @ 1.5 log @mbedtls: add upstream bug report @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.4 2018/12/21 09:33:14 wiz Exp $ d3 4 a6 4 SHA1 (mbedtls-2.14.1-apache.tgz) = ba0be2b8155710ef1da3ea5a05a4823812a50eed RMD160 (mbedtls-2.14.1-apache.tgz) = f0598874f9947031190df02393e49bec7fdad644 SHA512 (mbedtls-2.14.1-apache.tgz) = f8a9371fcdca34f61db3676f14f83ba303194dc097fcf34b8088b2d2b1b88b2818c2ed54eef747d8dff7c799e11aee511eb179bb815ae46934b3426d09926dda Size (mbedtls-2.14.1-apache.tgz) = 2468132 bytes @ 1.4 log @mbedtls: update to 2.14.1. = mbed TLS 2.14.1 branch released 2018-11-30 Security * Fix timing variations and memory access variations in RSA PKCS#1 v1.5 decryption that could lead to a Bleichenbacher-style padding oracle attack. In TLS, this affects servers that accept ciphersuites based on RSA decryption (i.e. ciphersuites whose name contains RSA but not (EC)DH(E)). Discovered by Eyal Ronen (Weizmann Institute), Robert Gillham (University of Adelaide), Daniel Genkin (University of Michigan), Adi Shamir (Weizmann Institute), David Wong (NCC Group), and Yuval Yarom (University of Adelaide, Data61). The attack is described in more detail in the paper available here: http://cat.eyalro.net/cat.pdf CVE-2018-19608 * In mbedtls_mpi_write_binary(), don't leak the exact size of the number via branching and memory access patterns. An attacker who could submit a plaintext for RSA PKCS#1 v1.5 decryption but only observe the timing of the decryption and not its result could nonetheless decrypt RSA plaintexts and forge RSA signatures. Other asymmetric algorithms may have been similarly vulnerable. Reported by Eyal Ronen, Robert Gillham, Daniel Genkin, Adi Shamir, David Wong and Yuval Yarom. * Wipe sensitive buffers on the stack in the CTR_DRBG and HMAC_DRBG modules. API Changes * The new functions mbedtls_ctr_drbg_update_ret() and mbedtls_hmac_drbg_update_ret() are similar to mbedtls_ctr_drbg_update() and mbedtls_hmac_drbg_update() respectively, but the new functions report errors whereas the old functions return void. We recommend that applications use the new functions. = mbed TLS 2.14.0 branch released 2018-11-19 Security * Fix overly strict DN comparison when looking for CRLs belonging to a particular CA. This previously led to ignoring CRLs when the CRL's issuer name and the CA's subject name differed in their string encoding (e.g., one using PrintableString and the other UTF8String) or in the choice of upper and lower case. Reported by Henrik Andersson of Bosch GmbH in issue #1784. * Fix a flawed bounds check in server PSK hint parsing. In case the incoming message buffer was placed within the first 64KiB of address space and a PSK-(EC)DHE ciphersuite was used, this allowed an attacker to trigger a memory access up to 64KiB beyond the incoming message buffer, potentially leading to an application crash or information disclosure. * Fix mbedtls_mpi_is_prime() to use more rounds of probabilistic testing. The previous settings for the number of rounds made it practical for an adversary to construct non-primes that would be erroneously accepted as primes with high probability. This does not have an impact on the security of TLS, but can matter in other contexts with numbers chosen potentially by an adversary that should be prime and can be validated. For example, the number of rounds was enough to securely generate RSA key pairs or Diffie-Hellman parameters, but was insufficient to validate Diffie-Hellman parameters properly. See "Prime and Prejudice" by by Martin R. Albrecht and Jake Massimo and Kenneth G. Paterson and Juraj Somorovsky. Features * Add support for temporarily suspending expensive ECC computations after some configurable amount of operations. This is intended to be used in constrained, single-threaded systems where ECC is time consuming and can block other operations until they complete. This is disabled by default, but can be enabled by MBEDTLS_ECP_RESTARTABLE at compile time and configured by mbedtls_ecp_set_max_ops() at runtime. It applies to the new xxx_restartable functions in ECP, ECDSA, PK and X.509 (CRL not supported yet), and to existing functions in ECDH and SSL (currently only implemented client-side, for ECDHE-ECDSA ciphersuites in TLS 1.2, including client authentication). * Add support for Arm CPU DSP extensions to accelerate asymmetric key operations. On CPUs where the extensions are available, they can accelerate MPI multiplications used in ECC and RSA cryptography. Contributed by Aurelien Jarno. * Extend RSASSA-PSS signature to allow a smaller salt size. Previously, PSS signature always used a salt with the same length as the hash, and returned an error if this was not possible. Now the salt size may be up to two bytes shorter. This allows the library to support all hash and signature sizes that comply with FIPS 186-4, including SHA-512 with a 1024-bit key. * Add support for 128-bit keys in CTR_DRBG. Note that using keys shorter than 256 bits limits the security of generated material to 128 bits. API Changes * Add a common error code of `MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED` for a feature that is not supported by underlying alternative implementations implementing cryptographic primitives. This is useful for hardware accelerators that don't implement all options or features. New deprecations * All module specific errors following the form MBEDTLS_ERR_XXX_FEATURE_UNAVAILABLE that indicate a feature is not supported are deprecated and are now replaced by the new equivalent platform error. * All module specific generic hardware acceleration errors following the form MBEDTLS_ERR_XXX_HW_ACCEL_FAILED that are deprecated and are replaced by the equivalent plaform error. * Deprecate the function mbedtls_mpi_is_prime() in favor of mbedtls_mpi_is_prime_ext() which allows specifying the number of Miller-Rabin rounds. Bugfix * Fix wrong order of freeing in programs/ssl/ssl_server2 example application leading to a memory leak in case both MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set. Fixes #2069. * Fix a bug in the update function for SSL ticket keys which previously invalidated keys of a lifetime of less than a 1s. Fixes #1968. * Fix failure in hmac_drbg in the benchmark sample application, when MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095 * Fix a bug in the record decryption routine ssl_decrypt_buf() which lead to accepting properly authenticated but improperly padded records in case of CBC ciphersuites using Encrypt-then-MAC. * Fix memory leak and freeing without initialization in the example program programs/x509/cert_write. Fixes #1422. * Ignore IV in mbedtls_cipher_set_iv() when the cipher mode is MBEDTLS_MODE_ECB. Found by ezdevelop. Fixes #1091. * Zeroize memory used for buffering or reassembling handshake messages after use. * Use `mbedtls_platform_zeroize()` instead of `memset()` for zeroization of sensitive data in the example programs aescrypt2 and crypt_and_hash. * Change the default string format used for various X.509 DN attributes to UTF8String. Previously, the use of the PrintableString format led to wildcards and non-ASCII characters being unusable in some DN attributes. Reported by raprepo in #1860 and by kevinpt in #468. Fix contributed by Thomas-Dee. * Fix compilation failure for configurations which use compile time replacements of standard calloc/free functions through the macros MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO. Reported by ole-de and ddhome2006. Fixes #882, #1642 and #1706. Changes * Removed support for Yotta as a build tool. * Add tests for session resumption in DTLS. * Close a test gap in (D)TLS between the client side and the server side: test the handling of large packets and small packets on the client side in the same way as on the server side. * Change the dtls_client and dtls_server samples to work by default over IPv6 and optionally by a build option over IPv4. * Change the use of Windows threading to use Microsoft Visual C++ runtime calls, rather than Win32 API calls directly. This is necessary to avoid conflict with C runtime usage. Found and fixed by irwir. * Remember the string format of X.509 DN attributes when replicating X.509 DNs. Previously, DN attributes were always written in their default string format (mostly PrintableString), which could lead to CRTs being created which used PrintableStrings in the issuer field even though the signing CA used UTF8Strings in its subject field; while X.509 compliant, such CRTs were rejected in some applications, e.g. some versions of Firefox, curl and GnuTLS. Reported in #1033 by Moschn. Fix contributed by Thomas-Dee. * Improve documentation of mbedtls_ssl_get_verify_result(). Fixes #517 reported by github-monoculture. * Add MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR flag to mbedtls_mpi_gen_prime() and use it to reduce error probability in RSA key generation to levels mandated by FIPS-186-4. = mbed TLS 2.13.1 branch released 2018-09-06 API Changes * Extend the platform module with an abstraction mbedtls_platform_gmtime_r() whose implementation should behave as a thread-safe version of gmtime(). This allows users to configure such an implementation at compile time when the target system cannot be deduced automatically, by setting the option MBEDTLS_PLATFORM_GMTIME_R_ALT. At this stage Mbed TLS is only able to automatically select implementations for Windows and POSIX C libraries. Bugfix * Fix build failures on platforms where only gmtime() is available but neither gmtime_r() nor gmtime_s() are present. Fixes #1907. = mbed TLS 2.13.0 branch released 2018-08-31 Security * Fix an issue in the X.509 module which could lead to a buffer overread during certificate extensions parsing. In case of receiving malformed input (extensions length field equal to 0), an illegal read of one byte beyond the input buffer is made. Found and analyzed by Nathan Crandall. Features * Add support for fragmentation of outgoing DTLS handshake messages. This is controlled by the maximum fragment length as set locally or negotiated with the peer, as well as by a new per-connection MTU option, set using mbedtls_ssl_set_mtu(). * Add support for auto-adjustment of MTU to a safe value during the handshake when flights do not get through (RFC 6347, section 4.1.1.1, last paragraph). * Add support for packing multiple records within a single datagram, enabled by default. * Add support for buffering out-of-order handshake messages in DTLS. The maximum amount of RAM used for this can be controlled by the compile-time constant MBEDTLS_SSL_DTLS_MAX_BUFFERING defined in mbedtls/config.h. API Changes * Add function mbedtls_ssl_set_datagram_packing() to configure the use of datagram packing (enabled by default). Bugfix * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation failure in the function could lead to other buffers being leaked. * Fixes an issue with MBEDTLS_CHACHAPOLY_C which would not compile if MBEDTLS_ARC4_C and MBEDTLS_CIPHER_NULL_CIPHER weren't also defined. #1890 * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails. Fix contributed by Espressif Systems. * Add ecc extensions only if an ecc based ciphersuite is used. This improves compliance to RFC 4492, and as a result, solves interoperability issues with BouncyCastle. Raised by milenamil in #1157. * Replace printf with mbedtls_printf in the ARIA module. Found by TrinityTonic in #1908. * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len() and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941. * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake with TLS versions 1.1 and earlier when the server requested authentication without providing a list of CAs. This was due to an overly strict bounds check in parsing the CertificateRequest message, introduced in Mbed TLS 2.12.0. Fixes #1954. * Fix a miscalculation of the maximum record expansion in mbedtls_ssl_get_record_expansion() in case of ChachaPoly ciphersuites, or CBC ciphersuites in (D)TLS versions 1.1 or higher. Fixes #1913, #1914. * Fix undefined shifts with negative values in certificates parsing (found by Catena cyber using oss-fuzz) * Fix memory leak and free without initialization in pk_encrypt and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128. * Remove redundant else statement. Raised by irwir. Fixes #1776. Changes * Copy headers preserving timestamps when doing a "make install". Contributed by xueruini. * Allow the forward declaration of public structs. Contributed by Dawid Drozd. Fixes #1215 raised by randombit. * Improve compatibility with some alternative CCM implementations by using CCM test vectors from RAM. * Add support for buffering of out-of-order handshake messages. * Add warnings to the documentation of the HKDF module to reduce the risk of misusing the mbedtls_hkdf_extract() and mbedtls_hkdf_expand() functions. Fixes #1775. Reported by Brian J. Murray. = mbed TLS 2.12.0 branch released 2018-07-25 Security * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384, in (D)TLS 1.0 to 1.2, that allowed an active network attacker to partially recover the plaintext of messages under some conditions by exploiting timing measurements. With DTLS, the attacker could perform this recovery by sending many messages in the same connection. With TLS or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if the same secret (for example a HTTP Cookie) has been repeatedly sent over connections manipulated by the attacker. Connections using GCM or CCM instead of CBC, using hash sizes other than SHA-384, or using Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was caused by a miscalculation (for SHA-384) in a countermeasure to the original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi Shamir. * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to execute code on the local machine as well as manipulate network packets, to partially recover the plaintext of messages under some conditions by using a cache attack targetting an internal MD/SHA buffer. With TLS or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if the same secret (for example a HTTP Cookie) has been repeatedly sent over connections manipulated by the attacker. Connections using GCM or CCM instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson, Eyal Ronen and Adi Shamir. * Add a counter-measure against a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to execute code on the local machine as well as manipulate network packets, to partially recover the plaintext of messages under some conditions (see previous entry) by using a cache attack targeting the SSL input record buffer. Connections using GCM or CCM instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson, Eyal Ronen and Adi Shamir. Features * Add new crypto primitives from RFC 7539: stream cipher Chacha20, one-time authenticator Poly1305 and AEAD construct Chacha20-Poly1305. Contributed by Daniel King. * Add support for CHACHA20-POLY1305 ciphersuites from RFC 7905. * Add platform support for the Haiku OS. (https://www.haiku-os.org). Contributed by Augustin Cavalier. * Make the receive and transmit buffers independent sizes, for situations where the outgoing buffer can be fixed at a smaller size than the incoming buffer, which can save some RAM. If buffer lengths are kept equal, there is no functional difference. Contributed by Angus Gratton, and also independently contributed again by Paul Sokolovsky. * Add support for key wrapping modes based on AES as defined by NIST SP 800-38F algorithms KW and KWP and by RFC 3394 and RFC 5649. Bugfix * Fix the key_app_writer example which was writing a leading zero byte which was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257. * Fix compilation error on C++, because of a variable named new. Found and fixed by Hirotaka Niisato in #1783. * Fix "no symbols" warning issued by ranlib when building on Mac OS X. Fix contributed by tabascoeye. * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid return value. Found by @@davidwu2000. #839 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber, Philippe Antoine. Fixes #1623. * Remove unused headers included in x509.c. Found by Chris Hanson and fixed by Brendan Shanks. Part of a fix for #992. * Fix compilation error when MBEDTLS_ARC4_C is disabled and MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719. * Added length checks to some TLS parsing functions. Found and fixed by Philippe Antoine from Catena cyber. #1663. * Fix the inline assembly for the MPI multiply helper function for i386 and i386 with SSE2. Found by László Langó. Fixes #1550 * Fix namespacing in header files. Remove the `mbedtls` namespacing in the `#include` in the header files. Resolves #857 * Fix compiler warning of 'use before initialisation' in mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid Drozd. #1098 * Fix decryption for zero length messages (which contain all padding) when a CBC based ciphersuite is used together with Encrypt-then-MAC. Previously, such a message was wrongly reported as an invalid record and therefore lead to the connection being terminated. Seen most often with OpenSSL using TLS 1.0. Reported by @@kFYatek and by Conor Murphy on the forum. Fix contributed by Espressif Systems. Fixes #1632 * Fix ssl_client2 example to send application data with 0-length content when the request_size argument is set to 0 as stated in the documentation. Fixes #1833. * Correct the documentation for `mbedtls_ssl_get_session()`. This API has deep copy of the session, and the peer certificate is not lost. Fixes #926. * Fix build using -std=c99. Fixed by Nick Wilson. Changes * Fail when receiving a TLS alert message with an invalid length, or invalid zero-length messages when using TLS 1.2. Contributed by Espressif Systems. * Change the default behaviour of mbedtls_hkdf_extract() to return an error when calling with a NULL salt and non-zero salt_len. Contributed by Brian J Murray * Change the shebang line in Perl scripts to look up perl in the PATH. Contributed by fbrosson. * Allow overriding the time on Windows via the platform-time abstraction. Fixed by Nick Wilson. * Use gmtime_r/gmtime_s for thread-safety. Fixed by Nick Wilson. = mbed TLS 2.11.0 branch released 2018-06-18 Features * Add additional block mode, OFB (Output Feedback), to the AES module and cipher abstraction module. * Implement the HMAC-based extract-and-expand key derivation function (HKDF) per RFC 5869. Contributed by Thomas Fossati. * Add support for the CCM* block cipher mode as defined in IEEE Std. 802.15.4. * Add support for the XTS block cipher mode with AES (AES-XTS). Contributed by Aorimn in pull request #414. * In TLS servers, support offloading private key operations to an external cryptoprocessor. Private key operations can be asynchronous to allow non-blocking operation of the TLS server stack. Bugfix * Fix the cert_write example to handle certificates signed with elliptic curves as well as RSA. Fixes #777 found by dbedev. * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition used by user applications. Found and fixed by Fabio Alessandrelli. * Fix compilation warnings with IAR toolchain, on 32 bit platform. Reported by rahmanih in #683 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552. Changes * Changed CMake defaults for IAR to treat all compiler warnings as errors. * Changed the Clang parameters used in the CMake build files to work for versions later than 3.6. Versions of Clang earlier than this may no longer work. Fixes #1072 = mbed TLS 2.10.0 branch released 2018-06-06 Features * Add support for ARIA cipher (RFC 5794) and associated TLS ciphersuites (RFC 6209). Disabled by default, see MBEDTLS_ARIA_C in config.h API Changes * Extend the platform module with a util component that contains functionality shared by multiple Mbed TLS modules. At this stage platform_util.h (and its associated platform_util.c) only contain mbedtls_platform_zeroize(), which is a critical function from a security point of view. mbedtls_platform_zeroize() needs to be regularly tested against compilers to ensure that calls to it are not removed from the output binary as part of redundant code elimination optimizations. Therefore, mbedtls_platform_zeroize() is moved to the platform module to facilitate testing and maintenance. Bugfix * Fix an issue with MicroBlaze support in bn_mul.h which was causing the build to fail. Found by zv-io. Fixes #1651. Changes * Support TLS testing in out-of-source builds using cmake. Fixes #1193. * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by TrinityTonic. #1359. = mbed TLS 2.9.0 branch released 2018-04-30 Security * Fix an issue in the X.509 module which could lead to a buffer overread during certificate validation. Additionally, the issue could also lead to unnecessary callback checks being made or to some validation checks to be omitted. The overread could be triggered remotely, while the other issues would require a non DER-compliant certificate to be correctly signed by a trusted CA, or a trusted CA with a non DER-compliant certificate. Found by luocm. Fixes #825. * Fix the buffer length assertion in the ssl_parse_certificate_request() function which led to an arbitrary overread of the message buffer. The overreads could be caused by receiving a malformed message at the point where an optional signature algorithms list is expected when the signature algorithms section is too short. In builds with debug output, the overread data is output with the debug data. * Fix a client-side bug in the validation of the server's ciphersuite choice which could potentially lead to the client accepting a ciphersuite it didn't offer or a ciphersuite that cannot be used with the TLS or DTLS version chosen by the server. This could lead to corruption of internal data structures for some configurations. Features * Add an option, MBEDTLS_AES_FEWER_TABLES, to dynamically compute smaller AES tables during runtime, thereby reducing the RAM/ROM footprint by ~6KiB. Suggested and contributed by jkivilin in pull request #394. * Add initial support for Curve448 (RFC 7748). Only mbedtls_ecp_mul() and ECDH primitive functions (mbedtls_ecdh_gen_public(), mbedtls_ecdh_compute_shared()) are supported for now. Contributed by Nicholas Wilson in pull request #348. API Changes * Extend the public API with the function of mbedtls_net_poll() to allow user applications to wait for a network context to become ready before reading or writing. * Add function mbedtls_ssl_check_pending() to the public API to allow a check for whether more more data is pending to be processed in the internal message buffers. This function is necessary to determine when it is safe to idle on the underlying transport in case event-driven IO is used. Bugfix * Fix a spurious uninitialized variable warning in cmac.c. Fix independently contributed by Brian J Murray and David Brown. * Add missing dependencies in test suites that led to build failures in configurations that omit certain hashes or public-key algorithms. Fixes #1040. * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks. #1353 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and MBEDTLS_VERSION_FEATURES in some test suites. Contributed by Deomid Ryabkov. Fixes #1299, #1475. * Fix the Makefile build process for building shared libraries on Mac OS X. Fixed by mnacamura. * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was unable to parse keys which had only the optional parameters field of the ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379. * Return the plaintext data more quickly on unpadded CBC decryption, as stated in the mbedtls_cipher_update() documentation. Contributed by Andy Leiserson. * Fix overriding and ignoring return values when parsing and writing to a file in pk_sign program. Found by kevlut in #1142. * Restrict usage of error code MBEDTLS_ERR_SSL_WANT_READ to situations where data needs to be fetched from the underlying transport in order to make progress. Previously, this error code was also occasionally returned when unexpected messages were being discarded, ignoring that further messages could potentially already be pending to be processed in the internal buffers; these cases led to deadlocks when event-driven I/O was used. Found and reported by Hubert Mis in #772. * Fix buffer length assertions in the ssl_parse_certificate_request() function which leads to a potential one byte overread of the message buffer. * Fix invalid buffer sizes passed to zlib during record compression and decompression. * Fix the soversion of libmbedcrypto to match the soversion of the maintained 2.7 branch. The soversion was increased in Mbed TLS version 2.7.1 to reflect breaking changes in that release, but the increment was missed in 2.8.0 and later releases outside of the 2.7 branch. Changes * Remove some redundant code in bignum.c. Contributed by Alexey Skalozub. * Support cmake builds where Mbed TLS is a subproject. Fix contributed independently by Matthieu Volat and Arne Schwabe. * Improve testing in configurations that omit certain hashes or public-key algorithms. Includes contributions by Gert van Dijk. * Improve negative testing of X.509 parsing. * Do not define global mutexes around readdir() and gmtime() in configurations where the feature is disabled. Found and fixed by Gergely Budai. * Harden the function mbedtls_ssl_config_free() against misuse, so that it doesn't leak memory if the user doesn't use mbedtls_ssl_conf_psk() and instead incorrectly manipulates the configuration structure directly. Found and fix submitted by junyeonLEE in #1220. * Provide an empty implementation of mbedtls_pkcs5_pbes2() when MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2 without PBES2. Fixed by Marcos Del Sol Vives. * Add the order of the base point as N in the mbedtls_ecp_group structure for Curve25519 (other curves had it already). Contributed by Nicholas Wilson #481 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan Krylov. * Improve the documentation of mbedtls_ssl_write(). Suggested by Paul Sokolovsky in #1356. * Add an option in the Makefile to support ar utilities where the operation letter must not be prefixed by '-', such as LLVM. Found and fixed by Alex Hixon. * Allow configuring the shared library extension by setting the DLEXT environment variable when using the project makefiles. * Optimize unnecessary zeroing in mbedtls_mpi_copy. Based on a contribution by Alexey Skalozub in #405. * In the SSL module, when f_send, f_recv or f_recv_timeout report transmitting more than the required length, return an error. Raised by Sam O'Connor in #1245. * Improve robustness of mbedtls_ssl_derive_keys against the use of HMAC functions with non-HMAC ciphersuites. Independently contributed by Jiayuan Chen in #1377. Fixes #1437. * Improve security of RSA key generation by including criteria from FIPS 186-4. Contributed by Jethro Beekman. #1380 * Declare functions in header files even when an alternative implementation of the corresponding module is activated by defining the corresponding MBEDTLS_XXX_ALT macro. This means that alternative implementations do not need to copy the declarations, and ensures that they will have the same API. * Add platform setup and teardown calls in test suites. = mbed TLS 2.8.0 branch released 2018-03-16 Default behavior changes * The truncated HMAC extension now conforms to RFC 6066. This means that when both sides of a TLS connection negotiate the truncated HMAC extension, Mbed TLS can now interoperate with other compliant implementations, but this breaks interoperability with prior versions of Mbed TLS. To restore the old behavior, enable the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in config.h. Found by Andreas Walz (ivESK, Offenburg University of Applied Sciences). Security * Fix implementation of the truncated HMAC extension. The previous implementation allowed an offline 2^80 brute force attack on the HMAC key of a single, uninterrupted connection (with no resumption of the session). * Verify results of RSA private key operations to defend against Bellcore glitch attack. * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause a crash on invalid input. * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a crash on invalid input. * Fix CRL parsing to reject CRLs containing unsupported critical extensions. Found by Falko Strenzke and Evangelos Karatsiolis. Features * Extend PKCS#8 interface by introducing support for the entire SHA algorithms family when encrypting private keys using PKCS#5 v2.0. This allows reading encrypted PEM files produced by software that uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli, OpenVPN Inc. Fixes #1339 * Add support for public keys encoded in PKCS#1 format. #1122 New deprecations * Deprecate support for record compression (configuration option MBEDTLS_ZLIB_SUPPORT). Bugfix * Fix the name of a DHE parameter that was accidentally changed in 2.7.0. Fixes #1358. * Fix test_suite_pk to work on 64-bit ILP32 systems. #849 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct. In the context of SSL, this resulted in handshake failure. Reported by daniel in the Mbed TLS forum. #1351 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347 * Fix setting version TLSv1 as minimal version, even if TLS 1 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION and MBEDTLS_SSL_MIN_MINOR_VERSION instead of MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and Nick Wilson on issue #355 * In test_suite_pk, pass valid parameters when testing for hash length overflow. #1179 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found by Guido Vranken. #639 * Log correct number of ciphersuites used in Client Hello message. #918 * Fix X509 CRT parsing that would potentially accept an invalid tag when parsing the subject alternative names. * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange() that could cause a key exchange to fail on valid data. * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that could cause a key exchange to fail on valid data. * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under MBEDTLS_DEPRECATED_REMOVED. #1388 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing. Found through fuzz testing. Changes * Fix tag lengths and value ranges in the documentation of CCM encryption. Contributed by Mathieu Briand. * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky. * Remove support for the library reference configuration for picocoin. * MD functions deprecated in 2.7.0 are no longer inline, to provide a migration path for those depending on the library's ABI. * Clarify the documentation of mbedtls_ssl_setup. * Use (void) when defining functions with no parameters. Contributed by Joris Aerts. #678 = mbed TLS 2.7.0 branch released 2018-02-03 Security * Fix a heap corruption issue in the implementation of the truncated HMAC extension. When the truncated HMAC extension is enabled and CBC is used, sending a malicious application packet could be used to selectively corrupt 6 bytes on the peer's heap, which could potentially lead to crash or remote code execution. The issue could be triggered remotely from either side in both TLS and DTLS. CVE-2018-0488 * Fix a buffer overflow in RSA-PSS verification when the hash was too large for the key size, which could potentially lead to crash or remote code execution. Found by Seth Terashima, Qualcomm Product Security Initiative, Qualcomm Technologies Inc. CVE-2018-0487 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all zeros. * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding 64 KiB to the address of the SSL buffer and causing a wrap around. * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by default enabled) maximum fragment length extension is disabled in the config and the application data buffer passed to mbedtls_ssl_write is larger than the internal message buffer (16384 bytes by default), the latter overflows. The exploitability of this issue depends on whether the application layer can be forced into sending such large packets. The issue was independently reported by Tim Nordell via e-mail and by Florin Petriuc and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022. Fixes #707. * Add a provision to prevent compiler optimizations breaking the time constancy of mbedtls_ssl_safer_memcmp(). * Ensure that buffers are cleared after use if they contain sensitive data. Changes were introduced in multiple places in the library. * Set PEM buffer to zero before freeing it, to avoid decoded private keys being leaked to memory after release. * Fix dhm_check_range() failing to detect trivial subgroups and potentially leaking 1 bit of the private key. Reported by prashantkspatil. * Make mbedtls_mpi_read_binary() constant-time with respect to the input data. Previously, trailing zero bytes were detected and omitted for the sake of saving memory, but potentially leading to slight timing differences. Reported by Marco Macchetti, Kudelski Group. * Wipe stack buffer temporarily holding EC private exponent after keypair generation. * Fix a potential heap buffer over-read in ALPN extension parsing (server-side). Could result in application crash, but only if an ALPN name larger than 16 bytes had been configured on the server. * Change default choice of DHE parameters from untrustworthy RFC 5114 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve manner. Features * Allow comments in test data files. * The selftest program can execute a subset of the tests based on command line arguments. * New unit tests for timing. Improve the self-test to be more robust when run on a heavily-loaded machine. * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT, MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs. * Add support for alternative implementations of GCM, selected by the configuration flag MBEDTLS_GCM_ALT. * Add support for alternative implementations for ECDSA, controlled by new configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and MBEDTLS_ECDSDA_GENKEY_AT in config.h. The following functions from the ECDSA module can be replaced with alternative implementation: mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey(). * Add support for alternative implementation of ECDH, controlled by the new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h. The following functions from the ECDH module can be replaced with an alternative implementation: mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared(). * Add support for alternative implementation of ECJPAKE, controlled by the new configuration flag MBEDTLS_ECJPAKE_ALT. * Add mechanism to provide alternative implementation of the DHM module. API Changes * Extend RSA interface by multiple functions allowing structure- independent setup and export of RSA contexts. Most notably, mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting up RSA contexts from partial key material and having them completed to the needs of the implementation automatically. This allows to setup private RSA contexts from keys consisting of N,D,E only, even if P,Q are needed for the purpose or CRT and/or blinding. * The configuration option MBEDTLS_RSA_ALT can be used to define alternative implementations of the RSA interface declared in rsa.h. * The following functions in the message digest modules (MD2, MD4, MD5, SHA1, SHA256, SHA512) have been deprecated and replaced as shown below. The new functions change the return type from void to int to allow returning error codes when using MBEDTLS__ALT. mbedtls__starts() -> mbedtls__starts_ret() mbedtls__update() -> mbedtls__update_ret() mbedtls__finish() -> mbedtls__finish_ret() mbedtls__process() -> mbedtls_internal__process() New deprecations * Deprecate usage of RSA primitives with non-matching key-type (e.g. signing with a public key). * Direct manipulation of structure fields of RSA contexts is deprecated. Users are advised to use the extended RSA API instead. * Deprecate usage of message digest functions that return void (mbedtls__starts, mbedtls__update, mbedtls__finish and mbedtls__process where is any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions that can return an error code. * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by parameters from RFC 3526 or the newly added parameters from RFC 7919. * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc. Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN etc. * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin() accepting DHM parameters in binary form, matching the new constants. Bugfix * Fix ssl_parse_record_header() to silently discard invalid DTLS records as recommended in RFC 6347 Section 4.1.2.7. * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times. Found by projectgus and Jethro Beekman, #836. * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin. * Parse signature algorithm extension when renegotiating. Previously, renegotiated handshakes would only accept signatures using SHA-1 regardless of the peer's preferences, or fail if SHA-1 was disabled. * Fix leap year calculation in x509_date_is_valid() to ensure that invalid dates on leap years with 100 and 400 intervals are handled correctly. Found by Nicholas Wilson. #694 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were accepted. Generating these signatures required the private key. * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys. Found independently by Florian in the mbed TLS forum and by Mishamax. #878, #1019. * Fix variable used before assignment compilation warnings with IAR toolchain. Found by gkerrien38. * Fix unchecked return codes from AES, DES and 3DES functions in pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively. If a call to one of the functions of the cryptographic primitive modules failed, the error may not be noticed by the function mbedtls_pem_read_buffer() causing it to return invalid values. Found by Guido Vranken. #756 * Include configuration file in md.h, to fix compilation warnings. Reported by aaronmdjones in #1001 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR writing routines that prevented these functions to work with alternative RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011. * Don't print X.509 version tag for v1 CRT's, and omit extensions for non-v3 CRT's. * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024 * Fix net_would_block() to avoid modification by errno through fcntl() call. Found by nkolban. Fixes #845. * Fix handling of handshake messages in mbedtls_ssl_read() in case MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp. * Add a check for invalid private parameters in mbedtls_ecdsa_sign(). Reported by Yolan Romailler. * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64. * Fix incorrect unit in benchmark output. #850 * Add size-checks for record and handshake message content, securing fragile yet non-exploitable code-paths. * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by MilenkoMitrovic, #1104 * Fix mbedtls_timing_alarm(0) on Unix and MinGW. * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1. * Fix possible memory leaks in mbedtls_gcm_self_test(). * Added missing return code checks in mbedtls_aes_self_test(). * Fix issues in RSA key generation program programs/x509/rsa_genkey and the RSA test suite where the failure of CTR DRBG initialization lead to freeing an RSA context and several MPI's without proper initialization beforehand. * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue. * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c. Found and fixed by Martijn de Milliano. * Fix an issue in the cipher decryption with the mode MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding. Note, this padding mode is not used by the TLS protocol. Found and fixed by Micha Kraus. * Fix the entropy.c module to not call mbedtls_sha256_starts() or mbedtls_sha512_starts() in the mbedtls_entropy_init() function. * Fix the entropy.c module to ensure that mbedtls_sha256_init() or mbedtls_sha512_init() is called before operating on the relevant context structure. Do not assume that zeroizing a context is a correct way to reset it. Found independently by ccli8 on Github. * In mbedtls_entropy_free(), properly free the message digest context. * Fix status handshake status message in programs/ssl/dtls_client.c. Found and fixed by muddog. Changes * Extend cert_write example program by options to set the certificate version and the message digest. Further, allow enabling/disabling of authority identifier, subject identifier and basic constraints extensions. * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In particular, don't require P,Q if neither CRT nor blinding are used. Reported and fix proposed independently by satur9nine and sliai on GitHub. * Only run AES-192 self-test if AES-192 is available. Fixes #963. * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the undeclared dependency of the RSA module on the ASN.1 module. * Update all internal usage of deprecated message digest functions to the new ones with return codes. In particular, this modifies the mbedtls_md_info_t structure. Propagate errors from these functions everywhere except some locations in the ssl_tls.c module. * Improve CTR_DRBG error handling by propagating underlying AES errors. * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography modules where the software implementation can be replaced by a hardware implementation. * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4 throughout the library. = mbed TLS 2.6.0 branch released 2017-08-10 Security * Fix authentication bypass in SSL/TLS: when authmode is set to optional, mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA (default: 8) intermediates, even when it was not trusted. This could be triggered remotely from either side. (With authmode set to 'required' (the default), the handshake was correctly aborted). * Reliably wipe sensitive data after use in the AES example applications programs/aes/aescrypt2 and programs/aes/crypt_and_hash. Found by Laurent Simon. Features * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown() and the context struct mbedtls_platform_context to perform platform-specific setup and teardown operations. The macro MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden by the user in a platform_alt.h file. These new functions are required in some embedded environments to provide a means of initialising underlying cryptographic acceleration hardware. API Changes * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the API consistent with mbed TLS 2.5.0. Specifically removed the inline qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt, mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found by James Cowgill. #978 * Certificate verification functions now set flags to -1 in case the full chain was not verified due to an internal error (including in the verify callback) or chain length limitations. * With authmode set to optional, the TLS handshake is now aborted if the verification of the peer's certificate failed due to an overlong chain or a fatal error in the verify callback. Bugfix * Add a check if iv_len is zero in GCM, and return an error if it is zero. Reported by roberto. #716 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD) to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will always be implemented by pthread support. #696 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(), in the case of an error. Found by redplait. #590 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random. Reported and fix suggested by guidovranken. #740 * Fix conditional preprocessor directives in bignum.h to enable 64-bit compilation when using ARM Compiler 6. * Fix a potential integer overflow in the version verification for DER encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America * Fix potential integer overflow in the version verification for DER encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America * Fix a potential integer overflow in the version verification for DER encoded X.509 certificates. The overflow could enable maliciously constructed certificates to bypass the certificate verification check. * Fix a call to the libc function time() to call the platform abstraction function mbedtls_time() instead. Found by wairua. #666 * Avoid shadowing of time and index functions through mbed TLS function arguments. Found by inestlerode. #557. Changes * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of 64-bit division. This is useful on embedded platforms where 64-bit division created a dependency on external libraries. #708 * Removed mutexes from ECP hardware accelerator code. Now all hardware accelerator code in the library leaves concurrency handling to the platform. Reported by Steven Cooreman. #863 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file config-no-entropy.h to reduce the RAM footprint. * Added a test script that can be hooked into git that verifies commits before they are pushed. * Improve documentation of PKCS1 decryption functions. = mbed TLS 2.5.1 released 2017-06-21 Security * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read(). The issue could only happen client-side with renegotiation enabled. Could result in DoS (application crash) or information leak (if the application layer sent data read from mbedtls_ssl_read() back to the server or to a third party). Can be triggered remotely. * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for certificate verification. SHA-1 can be turned back on with a compile-time option if needed. * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to detect it sometimes. Reported by Hugo Leisink. #810 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a potential Bleichenbacher/BERserk-style attack. Bugfix * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not valid C and they prevented the test from compiling in Visual Studio 2015 and with GCC using the -Wpedantic compilation option. * Fix insufficient support for signature-hash-algorithm extension, resulting in compatibility problems with Chrome. Found by hfloyrd. #823 * Fix behaviour that hid the original cause of fatal alerts in some cases when sending the alert failed. The fix makes sure not to hide the error that triggered the alert. * Fix SSLv3 renegotiation behaviour and stop processing data received from peer after sending a fatal alert to refuse a renegotiation attempt. Previous behaviour was to keep processing data even after the alert has been sent. * Accept empty trusted CA chain in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL. Found by Jethro Beekman. #864 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to reflect bad EC curves within verification result. * Fix bug that caused the modular inversion function to accept the invalid modulus 1 and therefore to hang. Found by blaufish. #641. * Fix incorrect sign computation in modular exponentiation when the base is a negative MPI. Previously the result was always negative. Found by Guido Vranken. * Fix a numerical underflow leading to stack overflow in mpi_read_file() that was triggered uppon reading an empty line. Found by Guido Vranken. Changes * Send fatal alerts in more cases. The previous behaviour was to skip sending the fatal alert and just drop the connection. * Clarify ECDSA documentation and improve the sample code to avoid misunderstanding and potentially dangerous use of the API. Pointed out by Jean-Philippe Aumasson. = mbed TLS 2.5.0 branch released 2017-05-17 Security * Wipe stack buffers in RSA private key operations (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent Simon. * Add exponent blinding to RSA private operations as a countermeasure against side-channel attacks like the cache attack described in https://arxiv.org/abs/1702.08719v2. Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss, Clémentine Maurice and Stefan Mangard. Features * Add hardware acceleration support for the Elliptic Curve Point module. This involved exposing parts of the internal interface to enable replacing the core functions and adding and alternative, module level replacement support for enabling the extension of the interface. * Add a new configuration option to 'mbedtls_ssl_config' to enable suppressing the CA list in Certificate Request messages. The default behaviour has not changed, namely every configured CAs name is included. API Changes * The following functions in the AES module have been deprecated and replaced by the functions shown below. The new functions change the return type from void to int to allow returning error codes when using MBEDTLS_AES_ALT, MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT. mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt() mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt() Bugfix * Remove macros from compat-1.3.h that correspond to deleted items from most recent versions of the library. Found by Kyle Keen. * Fixed issue in the Threading module that prevented mutexes from initialising. Found by sznaider. #667 #843 * Add checks in the PK module for the RSA functions on 64-bit systems. The PK and RSA modules use different types for passing hash length and without these checks the type cast could lead to data loss. Found by Guido Vranken. = mbed TLS 2.4.2 branch released 2017-03-08 Security * Add checks to prevent signature forgeries for very large messages while using RSA through the PK module in 64-bit systems. The issue was caused by some data loss when casting a size_t to an unsigned int value in the functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and mbedtls_pk_sign(). Found by Jean-Philippe Aumasson. * Fixed potential livelock during the parsing of a CRL in PEM format in mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing characters after the footer could result in the execution of an infinite loop. The issue can be triggered remotely. Found by Greg Zaverucha, Microsoft. * Removed MD5 from the allowed hash algorithms for CertificateRequest and CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2. Introduced by interoperability fix for #513. * Fixed a bug that caused freeing a buffer that was allocated on the stack, when verifying the validity of a key on secp224k1. This could be triggered remotely for example with a maliciously constructed certificate and potentially could lead to remote code execution on some platforms. Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos team. #569 CVE-2017-2784 Bugfix * Fix output certificate verification flags set by x509_crt_verify_top() when traversing a chain of trusted CA. The issue would cause both flags, MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be set when the verification conditions are not met regardless of the cause. Found by Harm Verhagen and inestlerode. #665 #561 * Fix the redefinition of macro ssl_set_bio to an undefined symbol mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it. Found by omlib-lin. #673 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and x509_csr.c that are reported when building mbed TLS with a config.h that does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that would compare 64 bits of the record counter instead of 48 bits as indicated in RFC 6347 Section 4.3.1. This could cause the execution of the renegotiation routines at unexpected times when the protocol is DTLS. Found by wariua. #687 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing the input string in PEM format to extract the different components. Found by Eyal Itkin. * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could cause buffer bound checks to be bypassed. Found by Eyal Itkin. * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could cause buffer bound checks to be bypassed. Found by Eyal Itkin. * Fixed potential arithmetic overflow in mbedtls_md2_update() that could cause buffer bound checks to be bypassed. Found by Eyal Itkin. * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could cause buffer bound checks to be bypassed. Found by Eyal Itkin. * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America. * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused by missing calls to mbedtls_pem_free() in cases when a MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and fix proposed by Guido Vranken. #722 * Fixed the templates used to generate project and solution files for Visual Studio 2015 as well as the files themselves, to remove a build warning generated in Visual Studio 2015. Reported by Steve Valliere. #742 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C. Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI number to write in hexadecimal is negative and requires an odd number of digits. Found and fixed by Guido Vranken. * Fix unlisted DES configuration dependency in some pkparse test cases. Found by inestlerode. #555 = mbed TLS 2.4.1 branch released 2016-12-13 Changes * Update to CMAC test data, taken from - NIST Special Publication 800-38B - Recommendation for Block Cipher Modes of Operation: The CMAC Mode for Authentication – October 2016 = mbed TLS 2.4.0 branch released 2016-10-17 Security * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant with RFC-5116 and could lead to session key recovery in very long TLS sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic. https://eprint.iacr.org/2016/475.pdf * Fixed potential stack corruption in mbedtls_x509write_crt_der() and mbedtls_x509write_csr_der() when the signature is copied to the buffer without checking whether there is enough space in the destination. The issue cannot be triggered remotely. Found by Jethro Beekman. Features * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by NIST SP 800-38B, RFC-4493 and RFC-4615. * Added hardware entropy selftest to verify that the hardware entropy source is functioning correctly. * Added a script to print build environment info for diagnostic use in test scripts, which is also now called by all.sh. * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to configure the maximum length of a file path that can be buffered when calling mbedtls_x509_crt_parse_path(). * Added a configuration file config-no-entropy.h that configures the subset of library features that do not require an entropy source. * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users to configure the minimum number of bytes for entropy sources using the mbedtls_hardware_poll() function. Bugfix * Fix for platform time abstraction to avoid dependency issues where a build may need time but not the standard C library abstraction, and added configuration consistency checks to check_config.h * Fix dependency issue in Makefile to allow parallel builds. * Fix incorrect handling of block lengths in crypt_and_hash.c sample program, when GCM is used. Found by udf2457. #441 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't enabled unless others were also present. Found by David Fernandez. #428 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on a contribution from Tobias Tangemann. #541 * Fixed cert_app.c sample program for debug output and for use when no root certificates are provided. * Fix conditional statement that would cause a 1 byte overread in mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599 * Fixed pthread implementation to avoid unintended double initialisations and double frees. Found by Niklas Amnebratt. * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found by inestlerode. #559. * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf data structure until after error checks are successful. Found by subramanyam-c. #622 * Fix documentation and implementation missmatch for function arguments of mbedtls_gcm_finish(). Found by cmiatpaar. #602 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558 * Fix potential byte overread when verifying malformed SERVER_HELLO in ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken. * Fix check for validity of date when parsing in mbedtls_x509_get_time(). Found by subramanyam-c. #626 * Fix compatibility issue with Internet Explorer client authentication, where the limited hash choices prevented the client from sending its certificate. Found by teumas. #513 * Fix compilation without MBEDTLS_SELF_TEST enabled. Changes * Extended test coverage of special cases, and added new timing test suite. * Removed self-tests from the basic-built-test.sh script, and added all missing self-tests to the test suites, to ensure self-tests are only executed once. * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len(). * Added support for a Yotta specific configuration file - through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE. * Added optimization for code space for X.509/OID based on configured features. Contributed by Aviv Palivoda. * Renamed source file library/net.c to library/net_sockets.c to avoid naming collision in projects which also have files with the common name net.c. For consistency, the corresponding header file, net.h, is marked as deprecated, and its contents moved to net_sockets.h. * Changed the strategy for X.509 certificate parsing and validation, to no longer disregard certificates with unrecognised fields. = mbed TLS 2.3.0 branch released 2016-06-28 Security * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt required by PKCS1 v2.2 * Fix potential integer overflow to buffer overflow in mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt (not triggerable remotely in (D)TLS). * Fix a potential integer underflow to buffer overread in mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in SSL/TLS. Features * Support for platform abstraction of the standard C library time() function. Bugfix * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three arguments where the same (in-place doubling). Found and fixed by Janos Follath. #309 * Fix potential build failures related to the 'apidoc' target, introduced in the previous patch release. Found by Robert Scheck. #390 #391 * Fix issue in Makefile that prevented building using armar. #386 * Fix memory leak that occured only when ECJPAKE was enabled and ECDHE and ECDSA was disabled in config.h . The leak didn't occur by default. * Fix an issue that caused valid certificates to be rejected whenever an expired or not yet valid certificate was parsed before a valid certificate in the trusted certificate list. * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the buffer after DER certificates to be included in the raw representation. * Fix issue that caused a hang when generating RSA keys of odd bitlength * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer dereference possible. * Fix issue that caused a crash if invalid curves were passed to mbedtls_ssl_conf_curves. #373 * Fix issue in ssl_fork_server which was preventing it from functioning. #429 * Fix memory leaks in test framework * Fix test in ssl-opt.sh that does not run properly with valgrind * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502 Changes * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5, don't use the optimized assembly for bignum multiplication. This removes the need to pass -fomit-frame-pointer to avoid a build error with -O0. * Disabled SSLv3 in the default configuration. * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey Skalozub). * Fix non-compliance server extension handling. Extensions for SSLv3 are now ignored, as required by RFC6101. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.3 2016/06/16 14:17:03 fhajny Exp $ d7 1 a7 1 SHA1 (patch-library_net__sockets.c) = 7ae83c24cbe1edc164ac23e21d9d78696794d7a4 @ 1.3 log @Update security/mbedtls to 2.2.1. This breaks removes the legacy PolarSSL compatibility layer. For software that needs it, please use security/mbedtls1 instead. Change license to apache-2.0. Upstream changelog since 1.3.11 follows. = mbed TLS 2.2.1 released 2016-01-05 Security - Fix potential double free when mbedtls_asn1_store_named_data() fails to allocate memory. Only used for certificate generation, not triggerable remotely in SSL/TLS. - Disable MD5 handshake signatures in TLS 1.2 by default Bugfix - Fix over-restrictive length limit in GCM. - Fix bug in certificate validation that caused valid chains to be rejected when the first intermediate certificate has pathLenConstraint=0. - Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign() - Fix suboptimal handling of unexpected records that caused interop issues with some peers over unreliable links. Avoid dropping an entire DTLS datagram if a single record in a datagram is unexpected, instead only drop the record and look at subsequent records (if any are present) in the same datagram. = mbed TLS 2.2.0 released 2015-11-04 Security - Fix potential double free if mbedtls_ssl_conf_psk() is called more than once and some allocation fails. Cannot be forced remotely. - Fix potential heap corruption on Windows when mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be triggered remotely. - Fix potential buffer overflow in some asn1_write_xxx() functions. Cannot be triggered remotely unless you create X.509 certificates based on untrusted input or write keys of untrusted origin. - The X509 max_pathlen constraint was not enforced on intermediate certificates. Features - Experimental support for EC J-PAKE as defined in Thread 1.0.0. Disabled by default as the specification might still change. - Added a key extraction callback to accees the master secret and key block. (Potential uses include EAP-TLS and Thread.) Bugfix - Self-signed certificates were not excluded from pathlen counting, resulting in some valid X.509 being incorrectly rejected. - Fix build error with configurations where ECDHE-PSK is the only key exchange. - Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or ECHD-ECDSA if the only key exchange. Multiple reports. - Fixed a bug causing some handshakes to fail due to some non-fatal alerts not being properly ignored. - mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and size/curve against the profile. Before that, there was no way to set a minimum key size for end-entity certificates with RSA keys. - Fix failures in MPI on Sparc(64) due to use of bad assembly code. - Fix typo in name of the extKeyUsage OID. - Fix bug in ASN.1 encoding of booleans that caused generated CA certificates to be rejected by some applications, including OS X Keychain. Changes - Improved performance of mbedtls_ecp_muladd() when one of the scalars is or -1. = mbed TLS 2.1.2 released 2015-10-06 Security - Added fix for CVE-2015-5291 to prevent heap corruption due to buffer overflow of the hostname or session ticket. - Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than once in the same handhake and mbedtls_ssl_conf_psk() was used. - Fix stack buffer overflow in pkcs12 decryption (used by mbedtls_pk_parse_key(file)() when the password is > 129 bytes. - Fix potential buffer overflow in mbedtls_mpi_read_string(). - Fix potential random memory allocation in mbedtls_pem_read_buffer() on crafted PEM input data. - Fix possible heap buffer overflow in base64_encoded() when the input buffer is 512MB or larger on 32-bit platforms. - Fix potential double-free if mbedtls_conf_psk() is called repeatedly on the same mbedtls_ssl_config object and memory allocation fails. - Fix potential heap buffer overflow in servers that perform client authentication against a crafted CA cert. Cannot be triggered remotely unless you allow third parties to pick trust CAs for client auth. Bugfix - Fix compile error in net.c with musl libc. - Fix macroization of 'inline' keyword when building as C++. Changes - Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure domain names are compliant with RFC 1035. - Fixed paths for check_config.h in example config files. = mbed TLS 2.1.1 released 2015-09-17 Security - Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5 signatures. - Fix possible client-side NULL pointer dereference (read) when the client tries to continue the handshake after it failed (a misuse of the API). Bugfix - Fix warning when using a 64bit platform. - Fix off-by-one error in parsing Supported Point Format extension that caused some handshakes to fail. Changes - Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow use of mbedtls_x509_crt_profile_next. - When a client initiates a reconnect from the same port as a live connection, if cookie verification is available (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be detected and mbedtls_ssl_read() will return MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new handshake with the same context. (See RFC 6347 section 4.2.8.) = mbed TLS 2.1.0 released 2015-09-04 Features - Added support for yotta as a build system. - Primary open source license changed to Apache 2.0 license. Bugfix - Fix segfault in the benchmark program when benchmarking DHM. - Fix build error with CMake and pre-4.5 versions of GCC - Fix bug when parsing a ServerHello without extensions - Fix bug in CMake lists that caused libmbedcrypto.a not to be installed - Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be installed - Fix compile error with armcc 5 with --gnu option. - Fix bug in Makefile that caused programs not to be installed correctly - Fix bug in Makefile that prevented from installing without building the tests - Fix missing -static-libgcc when building shared libraries for Windows with make. - Fix link error when building shared libraries for Windows with make. - Fix error when loading libmbedtls.so. - Fix bug in mbedtls_ssl_conf_default() that caused the default preset to be always used - Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could result trying to unlock an unlocked mutex on invalid input - Fix -Wshadow warnings - Fix memory corruption on client with overlong PSK identity, around SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely - Fix unused function warning when using MBEDTLS_MDx_ALT or MBEDTLS_SHAxxx_ALT - Fix memory corruption in pkey programs Changes - The PEM parser now accepts a trailing space at end of lines - It is now possible to #include a user-provided configuration file at the end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the compiler's command line. - When verifying a certificate chain, if an intermediate certificate is trusted, no later cert is checked. - Prepend a "thread identifier" to debug messages - Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment length. = mbed TLS 2.0.0 released 2015-07-13 Features - Support for DTLS 1.0 and 1.2 (RFC 6347). - Ability to override core functions from MDx, SHAx, AES and DES modules with custom implementation (eg hardware accelerated), complementing the ability to override the whole module. - New server-side implementation of session tickets that rotate keys to preserve forward secrecy, and allows sharing across multiple contexts. - Added a concept of X.509 cerificate verification profile that controls which algorithms and key sizes (curves for ECDSA) are acceptable. - Expanded configurability of security parameters in the SSL module with mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes(). - Introduced a concept of presets for SSL security-relevant configuration parameters. API Changes - The library has been split into libmbedcrypto, libmbedx509, libmbedtls. You now need to link to all of them if you use TLS for example. - All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace. Some names have been further changed to make them more consistent. Migration helpers scripts/rename.pl and include/mbedlts/compat-1.3.h are provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt - Renamings of fields inside structures, not covered by the previous list: mbedtls_cipher_info_t.key_length -> key_bitlen mbedtls_cipher_context_t.key_length -> key_bitlen mbedtls_ecp_curve_info.size -> bit_size - Headers are now found in the 'mbedtls' directory (previously 'polarssl'). - The following _init() functions that could return errors have been split into an _init() that returns void and another function that should generally be the first function called on this context after init: mbedtls_ssl_init() -> mbedtls_ssl_setup() mbedtls_ccm_init() -> mbedtls_ccm_setkey() mbedtls_gcm_init() -> mbedtls_gcm_setkey() mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)() mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed() Note that for mbedtls_ssl_setup(), you need to be done setting up the ssl_config structure before calling it. - Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(), ssl_set_session() and ssl_set_client_transport_id(), plus ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx() (see rename.pl and compat-1.3.h above) and their first argument's type changed from ssl_context to ssl_config. - ssl_set_bio() changed signature (contexts merged, order switched, one additional callback for read-with-timeout). - The following functions have been introduced and must be used in callback implementations (SNI, PSK) instead of their *conf counterparts: mbedtls_ssl_set_hs_own_cert() mbedtls_ssl_set_hs_ca_chain() mbedtls_ssl_set_hs_psk() - mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set using mbedtls_ssl_set_hostname(). - mbedtls_ssl_conf_session_cache() changed prototype (only one context pointer, parameters reordered). - On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in place of mbedtls_ssl_conf_session_tickets() to enable session tickets. - The SSL debug callback gained two new arguments (file name, line number). - Debug modes were removed. - mbedtls_ssl_conf_truncated_hmac() now returns void. - mbedtls_memory_buffer_alloc_init() now returns void. - X.509 verification flags are now an uint32_t. Affect the signature of: mbedtls_ssl_get_verify_result() mbedtls_x509_ctr_verify_info() mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated) mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated) - The following functions changed prototype to avoid an in-out length parameter: mbedtls_base64_encode() mbedtls_base64_decode() mbedtls_mpi_write_string() mbedtls_dhm_calc_secret() - In the NET module, all "int" and "int *" arguments for file descriptors changed type to "mbedtls_net_context *". - net_accept() gained new arguments for the size of the client_ip buffer. - In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now return void. - ecdsa_write_signature() gained an addtional md_alg argument and ecdsa_write_signature_det() was deprecated. - pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA. - Last argument of x509_crt_check_key_usage() and mbedtls_x509write_crt_set_key_usage() changed from int to unsigned. - test_ca_list (from certs.h) is renamed to test_cas_pem and is only available if POLARSSL_PEM_PARSE_C is defined (it never worked without). - Test certificates in certs.c are no longer guaranteed to be nul-terminated strings; use the new *_len variables instead of strlen(). - Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(), mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the length parameter to include the terminating null byte for PEM input. - Signature of mpi_mul_mpi() changed to make the last argument unsigned - calloc() is now used instead of malloc() everywhere. API of platform layer and the memory_buffer_alloc module changed accordingly. - Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION (support for renegotiation now needs explicit enabling in config.h). - Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE in config.h - net_connect() and net_bind() have a new 'proto' argument to choose between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP. Their 'port' argument type is changed to a string. - Some constness fixes Removals - Removed mbedtls_ecp_group_read_string(). Only named groups are supported. - Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use mbedtls_ecp_muladd(). - Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions (use generic functions from md.h) - Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom waiting function. - Removed test DHM parameters from the test certs module. - Removed the PBKDF2 module (use PKCS5). - Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()). - Removed compat-1.2.h (helper for migrating from 1.2 to 1.3). - Removed openssl.h (very partial OpenSSL compatibility layer). - Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on). - Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have been removed (compiler is required to support 32-bit operations). - Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled). - Removed test program o_p_test, the script compat.sh does more. - Removed test program ssl_test, superseded by ssl-opt.sh. - Removed helper script active-config.pl New deprecations - md_init_ctx() is deprecated in favour of md_setup(), that adds a third argument (allowing memory savings if HMAC is not used) Semi-API changes (technically public, morally private) - Renamed a few headers to include _internal in the name. Those headers are not supposed to be included by users. - Changed md_info_t into an opaque structure (use md_get_xxx() accessors). - Changed pk_info_t into an opaque structure. - Changed cipher_base_t into an opaque structure. - Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl. - x509_crt.key_usage changed from unsigned char to unsigned int. - Removed r and s from ecdsa_context - Removed mode from des_context and des3_context Default behavior changes - The default minimum TLS version is now TLS 1.0. - RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the default ciphersuite list returned by ssl_list_ciphersuites() - Support for receiving SSLv2 ClientHello is now disabled by default at compile time. - The default authmode for SSL/TLS clients is now REQUIRED. - Support for RSA_ALT contexts in the PK layer is now optional. Since is is enabled in the default configuration, this is only noticeable if using a custom config.h - Default DHM parameters server-side upgraded from 1024 to 2048 bits. - A minimum RSA key size of 2048 bits is now enforced during ceritificate chain verification. - Negotiation of truncated HMAC is now disabled by default on server too. - The following functions are now case-sensitive: mbedtls_cipher_info_from_string() mbedtls_ecp_curve_info_from_name() mbedtls_md_info_from_string() mbedtls_ssl_ciphersuite_from_string() mbedtls_version_check_feature() Requirement changes - The minimum MSVC version required is now 2010 (better C99 support). - The NET layer now unconditionnaly relies on getaddrinfo() and select(). - Compiler is required to support C99 types such as long long and uint32_t. API changes from the 1.4 preview branch - ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with new prototype, and mbedtls_ssl_set_read_timeout(). - The following functions now return void: mbedtls_ssl_conf_transport() mbedtls_ssl_conf_max_version() mbedtls_ssl_conf_min_version() - DTLS no longer hard-depends on TIMING_C, but uses a callback interface instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing an example implementation, see mbedtls_timing_delay_context and mbedtls_timing_set/get_delay(). - With UDP sockets, it is no longer necessary to call net_bind() again after a successful net_accept(). Changes - mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now thread-safe if MBEDTLS_THREADING_C is enabled. - Reduced ROM fooprint of SHA-256 and added an option to reduce it even more (at the expense of performance) MBEDTLS_SHA256_SMALLER. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.2 2015/11/04 01:17:50 agc Exp $ d3 5 a7 6 SHA1 (mbedtls-2.2.1-apache.tgz) = d2ff60fad7191dbb5b81ff6c22769964e5a7d53d RMD160 (mbedtls-2.2.1-apache.tgz) = a87671954663085100e288f4395f385435471825 SHA512 (mbedtls-2.2.1-apache.tgz) = 6a74abc4ea225eb6bcf20894bb1a6faa82dbaff11129c41849151e2654570609efeee70d0644ce63c4d2c11e6142b2db262b88f3a22fdceff0a215a64a5d6eb0 Size (mbedtls-2.2.1-apache.tgz) = 1863674 bytes SHA1 (patch-Makefile) = c69fceae637bd025fccf0ac3de926dfc37c22fa6 SHA1 (patch-library_Makefile) = 7565162f06d2abd91cc974321fd873409f11a181 @ 1.2 log @Add SHA512 digests for distfiles for security category Problems found locating distfiles: Package f-prot-antivirus6-fs-bin: missing distfile fp-NetBSD.x86.32-fs-6.2.3.tar.gz Package f-prot-antivirus6-ws-bin: missing distfile fp-NetBSD.x86.32-ws-6.2.3.tar.gz Package libidea: missing distfile libidea-0.8.2b.tar.gz Package openssh: missing distfile openssh-7.1p1-hpn-20150822.diff.bz2 Package uvscan: missing distfile vlp4510e.tar.Z Otherwise, existing SHA1 digests verified and found to be the same on the machine holding the existing distfiles (morden). All existing SHA1 digests retained for now as an audit trail. @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.1 2015/06/12 09:05:05 fhajny Exp $ d3 6 a8 7 SHA1 (mbedtls-1.3.11-gpl.tgz) = 3948084c9d3312b381d458b06d9a2066c3cc0184 RMD160 (mbedtls-1.3.11-gpl.tgz) = 66448e7d5ca41e7c64f55bdb3e4b9ec9d1ec3205 SHA512 (mbedtls-1.3.11-gpl.tgz) = 242c486becc34d3b7ebba7624686aea6ed7713033aeabbfae7227284df322f191ddd5b9ded1228f100cd50bcfafb12396d93c30420afd3feb979b52a1860551e Size (mbedtls-1.3.11-gpl.tgz) = 1731809 bytes SHA1 (patch-Makefile) = 80698e16a397133de134ab582016b9e91ad652f0 SHA1 (patch-library_Makefile) = 551854fbdd91ae180f1d5408869a556ff0c39d1a SHA1 (patch-programs_test_CMakeLists.txt) = 94ce731d81f1584c406e3b295c84fd6a5c327a50 @ 1.1 log @Import mbed TLS 1.3.11 as security/mbedtls. This is former security/polarssl rebranded under a new name, keeping the same API though and providing the previous libs as symlinks, so should be used as as drop-in replacement for security/polarssl. Changelog since polarssl-1.3.9 follows. = mbed TLS 1.3.11 released 2015-06-04 Security * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and extendedKeyUsage on the leaf certificate was lost (results not accessible via ssl_get_verify_results()). * Add countermeasure against "Lucky 13 strikes back" cache-based attack, https://dl.acm.org/citation.cfm?id=2714625 Features * Improve ECC performance by using more efficient doubling formulas (contributed by Peter Dettman). * Add x509_crt_verify_info() to display certificate verification results. * Add support for reading DH parameters with privateValueLength included (contributed by Daniel Kahn Gillmor). * Add support for bit strings in X.509 names (request by Fredrik Axelsson). * Add support for id-at-uniqueIdentifier in X.509 names. * Add support for overriding snprintf() (except on Windows) and exit() in the platform layer. * Add an option to use macros instead of function pointers in the platform layer (helps get rid of unwanted references). * Improved Makefiles for Windows targets by fixing library targets and making cross-compilation easier (thanks to Alon Bar-Lev). * The benchmark program also prints heap usage for public-key primitives if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined. * New script ecc-heap.sh helps measuring the impact of ECC parameters on speed and RAM (heap only for now) usage. * New script memory.sh helps measuring the ROM and RAM requirements of two reduced configurations (PSK-CCM and NSA suite B). * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce warnings on use of deprecated functions (with GCC and Clang only). * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce errors on use of deprecated functions. Bugfix * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS. * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara). * Fix bug in entropy.c when THREADING_C is also enabled that caused entropy_free() to crash (thanks to Rafał Przywara). * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than once on the same context. * Fix bug in ssl_mail_client when password is longer that username (found by Bruno Pape). * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules (detected by Clang's 3.6 UBSan). * mpi_size() and mpi_msb() would segfault when called on an mpi that is initialized but not set (found by pravic). * Fix detection of support for getrandom() on Linux (reported by syzzer) by doing it at runtime (using uname) rather that compile time. * Fix handling of symlinks by "make install" (found by Gaël PORTAY). * Fix potential NULL pointer dereference (not trigerrable remotely) when ssl_write() is called before the handshake is finished (introduced in 1.3.10) (first reported by Martin Blumenstingl). * Fix bug in pk_parse_key() that caused some valid private EC keys to be rejected. * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos). * Fix thread safety bug in RSA operations (found by Fredrik Axelsson). * Fix hardclock() (only used in the benchmarking program) with some versions of mingw64 (found by kxjhlele). * Fix warnings from mingw64 in timing.c (found by kxjklele). * Fix potential unintended sign extension in asn1_get_len() on 64-bit platforms. * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid). * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced in 1.3.10). * Add missing extern "C" guard in aesni.h (reported by amir zamani). * Add missing dependency on SHA-256 in some x509 programs (reported by Gergely Budai). * Fix bug related to ssl_set_curves(): the client didn't check that the curve picked by the server was actually allowed. Changes * Remove bias in mpi_gen_prime (contributed by Pascal Junod). * Remove potential sources of timing variations (some contributed by Pascal Junod). * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated. * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated. * compat-1.2.h and openssl.h are deprecated. * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now more flexible (warning: OFLAGS is not used any more) (see the README) (contributed by Alon Bar-Lev). * ssl_set_own_cert() no longer calls pk_check_pair() since the performance impact was bad for some users (this was introduced in 1.3.10). * Move from SHA-1 to SHA-256 in example programs using signatures (suggested by Thorsten Mühlfelder). * Remove some unneeded inclusions of header files from the standard library "minimize" others (eg use stddef.h if only size_t is needed). * Change #include lines in test files to use double quotes instead of angle brackets for uniformity with the rest of the code. * Remove dependency on sscanf() in X.509 parsing modules. = mbed TLS 1.3.10 released 2015-02-09 Security * NULL pointer dereference in the buffer-based allocator when the buffer is full and polarssl_free() is called (found by Mark Hasemeyer) (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is not by default). * Fix remotely-triggerable uninitialised pointer dereference caused by crafted X.509 certificate (TLS server is not affected if it doesn't ask for a client certificate) (found using Codenomicon Defensics). * Fix remotely-triggerable memory leak caused by crafted X.509 certificates (TLS server is not affected if it doesn't ask for a client certificate) (found using Codenomicon Defensics). * Fix potential stack overflow while parsing crafted X.509 certificates (TLS server is not affected if it doesn't ask for a client certificate) (found using Codenomicon Defensics). * Fix timing difference that could theoretically lead to a Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges (reported by Sebastian Schinzel). Features * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv). * Add support for Extended Master Secret (draft-ietf-tls-session-hash). * Add support for Encrypt-then-MAC (RFC 7366). * Add function pk_check_pair() to test if public and private keys match. * Add x509_crl_parse_der(). * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the length of an X.509 verification chain. * Support for renegotiation can now be disabled at compile-time * Support for 1/n-1 record splitting, a countermeasure against BEAST. * Certificate selection based on signature hash, preferring SHA-1 over SHA-2 for pre-1.2 clients when multiple certificates are available. * Add support for getrandom() syscall on recent Linux kernels with Glibc or a compatible enough libc (eg uClibc). * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime while using the default ciphersuite list. * Added new error codes and debug messages about selection of ciphersuite/certificate. Bugfix * Stack buffer overflow if ctr_drbg_update() is called with too large add_len (found by Jean-Philippe Aumasson) (not triggerable remotely). * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE if memory_buffer_alloc_init() was called with buf not aligned and len not a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely). * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found by Julian Ospald). * Fix potential undefined behaviour in Camellia. * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a multiple of 8 (found by Gergely Budai). * Fix unchecked return code in x509_crt_parse_path() on Windows (found by Peter Vaskovic). * Fix assembly selection for MIPS64 (thanks to James Cowgill). * ssl_get_verify_result() now works even if the handshake was aborted due to a failed verification (found by Fredrik Axelsson). * Skip writing and parsing signature_algorithm extension if none of the key exchanges enabled needs certificates. This fixes a possible interop issue with some servers when a zero-length extension was sent. (Reported by Peter Dettman.) * On a 0-length input, base64_encode() did not correctly set output length (found by Hendrik van den Boogaard). Changes * Use deterministic nonces for AEAD ciphers in TLS by default (possible to switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h). * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined. * ssl_set_own_cert() now returns an error on key-certificate mismatch. * Forbid repeated extensions in X.509 certificates. * debug_print_buf() now prints a text view in addition to hexadecimal. * A specific error is now returned when there are ciphersuites in common but none of them is usable due to external factors such as no certificate with a suitable (extended)KeyUsage or curve or no PSK set. * It is now possible to disable negotiation of truncated HMAC server-side @ text @d1 1 a1 1 $NetBSD: distinfo,v 1.7 2015/03/28 19:00:28 rodent Exp $ d5 1 @