diff --git a/ChangeLog.d/9684.txt b/ChangeLog.d/9684.txt new file mode 100644 index 0000000000..115ded87a0 --- /dev/null +++ b/ChangeLog.d/9684.txt @@ -0,0 +1,2 @@ +Removals + * Remove support for the DHE-PSK key exchange in TLS 1.2. diff --git a/ChangeLog.d/9685.txt b/ChangeLog.d/9685.txt new file mode 100644 index 0000000000..9820aff759 --- /dev/null +++ b/ChangeLog.d/9685.txt @@ -0,0 +1,2 @@ +Removals + * Remove support for the DHE-RSA key exchange in TLS 1.2. diff --git a/ChangeLog.d/9874.txt b/ChangeLog.d/9874.txt new file mode 100644 index 0000000000..a4d2e032ee --- /dev/null +++ b/ChangeLog.d/9874.txt @@ -0,0 +1,5 @@ +API changes + * Align the mbedtls_ssl_ticket_setup() function with the PSA Crypto API. + Instead of taking a mbedtls_cipher_type_t as an argument, this function + now takes 3 new arguments: a PSA algorithm, key type and key size, to + specify the AEAD for ticket protection. diff --git a/ChangeLog.d/9892.txt b/ChangeLog.d/9892.txt new file mode 100644 index 0000000000..962bdad823 --- /dev/null +++ b/ChangeLog.d/9892.txt @@ -0,0 +1,5 @@ +Removals + * Remove deprecated mbedtls_x509write_crt_set_serial(). The function was + already deprecated and superseded by + mbedtls_x509write_crt_set_serial_raw(). + diff --git a/ChangeLog.d/9956.txt b/ChangeLog.d/9956.txt new file mode 100644 index 0000000000..cea4af1ec6 --- /dev/null +++ b/ChangeLog.d/9956.txt @@ -0,0 +1,6 @@ +Removals + * Following the removal of DHM module (#9972 and TF-PSA-Crypto#175) the + following SSL functions are removed: + - mbedtls_ssl_conf_dh_param_bin + - mbedtls_ssl_conf_dh_param_ctx + - mbedtls_ssl_conf_dhm_min_bitlen diff --git a/ChangeLog.d/9964.txt b/ChangeLog.d/9964.txt new file mode 100644 index 0000000000..189b4c1d0e --- /dev/null +++ b/ChangeLog.d/9964.txt @@ -0,0 +1,26 @@ +Removals + * Sample programs for the legacy crypto API have been removed. + pkey/rsa_genkey.c + pkey/pk_decrypt.c + pkey/dh_genprime.c + pkey/rsa_verify.c + pkey/mpi_demo.c + pkey/rsa_decrypt.c + pkey/key_app.c + pkey/dh_server.c + pkey/ecdh_curve25519.c + pkey/pk_encrypt.c + pkey/rsa_sign.c + pkey/key_app_writer.c + pkey/dh_client.c + pkey/ecdsa.c + pkey/rsa_encrypt.c + wince_main.c + aes/crypt_and_hash.c + random/gen_random_ctr_drbg.c + random/gen_entropy.c + hash/md_hmac_demo.c + hash/hello.c + hash/generic_sum.c + cipher/cipher_aead_demo.c + diff --git a/ChangeLog.d/add-tls-exporter.txt b/ChangeLog.d/add-tls-exporter.txt new file mode 100644 index 0000000000..1aea653e09 --- /dev/null +++ b/ChangeLog.d/add-tls-exporter.txt @@ -0,0 +1,6 @@ +Features + * Add the function mbedtls_ssl_export_keying_material() which allows the + client and server to extract additional shared symmetric keys from an SSL + session, according to the TLS-Exporter specification in RFC 8446 and 5705. + This requires MBEDTLS_SSL_KEYING_MATERIAL_EXPORT to be defined in + mbedtls_config.h. diff --git a/ChangeLog.d/error-unification.txt b/ChangeLog.d/error-unification.txt new file mode 100644 index 0000000000..1f8e8af1df --- /dev/null +++ b/ChangeLog.d/error-unification.txt @@ -0,0 +1,12 @@ +API changes + * The PSA and Mbed TLS error spaces are now unified. mbedtls_xxx() + functions can now return PSA_ERROR_xxx values. + There is no longer a distinction between "low-level" and "high-level" + Mbed TLS error codes. + This will not affect most applications since the error values are + between -32767 and -1 as before. + +Removals + * Remove mbedtls_low_level_strerr() and mbedtls_high_level_strerr(), + since these concepts no longer exists. There is just mbedtls_strerror(). + diff --git a/ChangeLog.d/fix-asn1-store-named-data.txt b/ChangeLog.d/fix-asn1-store-named-data.txt new file mode 100644 index 0000000000..7a040bd43b --- /dev/null +++ b/ChangeLog.d/fix-asn1-store-named-data.txt @@ -0,0 +1,8 @@ +Security + * Fix a bug in tf-psa-crypto's mbedtls_asn1_store_named_data() where it + would sometimes leave an item in the output list in an inconsistent + state with val.p == NULL but val.len > 0. Affected functions used in X.509 + would then dereference a NULL pointer. Applications that do not + call this function (directly, or indirectly through X.509 writing) are not + affected. Found by Linh Le and Ngan Nguyen from Calif. + diff --git a/ChangeLog.d/fix-clang-psa-build-without-dhm.txt b/ChangeLog.d/fix-clang-psa-build-without-dhm.txt new file mode 100644 index 0000000000..543f4dbf1b --- /dev/null +++ b/ChangeLog.d/fix-clang-psa-build-without-dhm.txt @@ -0,0 +1,5 @@ +Bugfix + * Fix Clang compilation error when finite-field Diffie-Hellman is disabled. + Reported by Michael Schuster in #9188. + + diff --git a/ChangeLog.d/fix-compilation-when-memcpy-is-function-like-macro.txt b/ChangeLog.d/fix-compilation-when-memcpy-is-function-like-macro.txt new file mode 100644 index 0000000000..11e7d25392 --- /dev/null +++ b/ChangeLog.d/fix-compilation-when-memcpy-is-function-like-macro.txt @@ -0,0 +1,2 @@ +Bugfix + * Fix compilation error when memcpy() is a function-like macros. Fixes #8994. diff --git a/ChangeLog.d/fix-compilation-with-djgpp.txt b/ChangeLog.d/fix-compilation-with-djgpp.txt new file mode 100644 index 0000000000..5b79fb69de --- /dev/null +++ b/ChangeLog.d/fix-compilation-with-djgpp.txt @@ -0,0 +1,2 @@ +Bugfix + * Fix compilation on MS-DOS DJGPP. Fixes #9813. diff --git a/ChangeLog.d/fix-dependency-on-generated-files.txt b/ChangeLog.d/fix-dependency-on-generated-files.txt index b3e7e4e16b..540cf0ded2 100644 --- a/ChangeLog.d/fix-dependency-on-generated-files.txt +++ b/ChangeLog.d/fix-dependency-on-generated-files.txt @@ -1,3 +1,3 @@ Bugfix - * Fix potential CMake parallel build failure when building both the static - and shared libraries. + * Fix potential CMake parallel build failure when building both the static + and shared libraries. diff --git a/ChangeLog.d/fix-legacy-compression-issue.txt b/ChangeLog.d/fix-legacy-compression-issue.txt new file mode 100644 index 0000000000..2549af8733 --- /dev/null +++ b/ChangeLog.d/fix-legacy-compression-issue.txt @@ -0,0 +1,6 @@ +Bugfix + * Fixes an issue where some TLS 1.2 clients could not connect to an + Mbed TLS 3.6.0 server, due to incorrect handling of + legacy_compression_methods in the ClientHello. + fixes #8995, #9243. + diff --git a/ChangeLog.d/fix-msvc-version-guard-format-zu.txt b/ChangeLog.d/fix-msvc-version-guard-format-zu.txt new file mode 100644 index 0000000000..eefda618ca --- /dev/null +++ b/ChangeLog.d/fix-msvc-version-guard-format-zu.txt @@ -0,0 +1,5 @@ +Bugfix + * Fix definition of MBEDTLS_PRINTF_SIZET to prevent runtime crashes that + occurred whenever SSL debugging was enabled on a copy of Mbed TLS built + with Visual Studio 2013 or MinGW. + Fixes #10017. diff --git a/ChangeLog.d/fix-server-mode-only-build.txt b/ChangeLog.d/fix-server-mode-only-build.txt new file mode 100644 index 0000000000..d1d8341f79 --- /dev/null +++ b/ChangeLog.d/fix-server-mode-only-build.txt @@ -0,0 +1,3 @@ +Bugfix + * Fix server mode only build when MBEDTLS_SSL_SRV_C is enabled but + MBEDTLS_SSL_CLI_C is disabled. Reported by M-Bab on GitHub in #9186. diff --git a/ChangeLog.d/fix-string-to-names-memory-management.txt b/ChangeLog.d/fix-string-to-names-memory-management.txt new file mode 100644 index 0000000000..6b744a74fb --- /dev/null +++ b/ChangeLog.d/fix-string-to-names-memory-management.txt @@ -0,0 +1,19 @@ +Security + * Fix possible use-after-free or double-free in code calling + mbedtls_x509_string_to_names(). This was caused by the function calling + mbedtls_asn1_free_named_data_list() on its head argument, while the + documentation did no suggest it did, making it likely for callers relying + on the documented behaviour to still hold pointers to memory blocks after + they were free()d, resulting in high risk of use-after-free or double-free, + with consequences ranging up to arbitrary code execution. + In particular, the two sample programs x509/cert_write and x509/cert_req + were affected (use-after-free if the san string contains more than one DN). + Code that does not call mbedtls_string_to_names() directly is not affected. + Found by Linh Le and Ngan Nguyen from Calif. + CVE-2025-47917 + +Changes + * The function mbedtls_x509_string_to_names() now requires its head argument + to point to NULL on entry. This makes it likely that existing risky uses of + this function (see the entry in the Security section) will be detected and + fixed. diff --git a/ChangeLog.d/fix-string-to-names-store-named-data.txt b/ChangeLog.d/fix-string-to-names-store-named-data.txt new file mode 100644 index 0000000000..b088468612 --- /dev/null +++ b/ChangeLog.d/fix-string-to-names-store-named-data.txt @@ -0,0 +1,10 @@ +Security + * Fix a bug in mbedtls_x509_string_to_names() and the + mbedtls_x509write_{crt,csr}_set_{subject,issuer}_name() functions, + where some inputs would cause an inconsistent state to be reached, causing + a NULL dereference either in the function itself, or in subsequent + users of the output structure, such as mbedtls_x509_write_names(). This + only affects applications that create (as opposed to consume) X.509 + certificates, CSRs or CRLs. Found by Linh Le and Ngan Nguyen from Calif. + CVE-2025-48965 + diff --git a/ChangeLog.d/fix_reporting_of_key_usage_issues.txt b/ChangeLog.d/fix_reporting_of_key_usage_issues.txt new file mode 100644 index 0000000000..506f2bdf0e --- /dev/null +++ b/ChangeLog.d/fix_reporting_of_key_usage_issues.txt @@ -0,0 +1,12 @@ +Security + * With TLS 1.3, when a server enables optional authentication of the + client, if the client-provided certificate does not have appropriate values + in keyUsage or extKeyUsage extensions, then the return value of + mbedtls_ssl_get_verify_result() would incorrectly have the + MBEDTLS_X509_BADCERT_KEY_USAGE and MBEDTLS_X509_BADCERT_EXT_KEY_USAGE bits + clear. As a result, an attacker that had a certificate valid for uses other + than TLS client authentication could be able to use it for TLS client + authentication anyway. Only TLS 1.3 servers were affected, and only with + optional authentication (required would abort the handshake with a fatal + alert). + CVE-2024-45159 diff --git a/ChangeLog.d/mbedtls_ssl_set_hostname.txt b/ChangeLog.d/mbedtls_ssl_set_hostname.txt new file mode 100644 index 0000000000..05f375dcb3 --- /dev/null +++ b/ChangeLog.d/mbedtls_ssl_set_hostname.txt @@ -0,0 +1,18 @@ +Default behavior changes + * In TLS clients, if mbedtls_ssl_set_hostname() has not been called, + mbedtls_ssl_handshake() now fails with + MBEDTLS_ERR_SSL_CERTIFICATE_VERIFICATION_WITHOUT_HOSTNAME + if certificate-based authentication of the server is attempted. + This is because authenticating a server without knowing what name + to expect is usually insecure. + +Security + * Note that TLS clients should generally call mbedtls_ssl_set_hostname() + if they use certificate authentication (i.e. not pre-shared keys). + Otherwise, in many scenarios, the server could be impersonated. + The library will now prevent the handshake and return + MBEDTLS_ERR_SSL_CERTIFICATE_VERIFICATION_WITHOUT_HOSTNAME + if mbedtls_ssl_set_hostname() has not been called. + Reported by Daniel Stenberg. + CVE-2025-27809 + diff --git a/ChangeLog.d/oid.txt b/ChangeLog.d/oid.txt new file mode 100644 index 0000000000..53828d85b1 --- /dev/null +++ b/ChangeLog.d/oid.txt @@ -0,0 +1,8 @@ +Removals + * The library no longer offers interfaces to look up values by OID + or OID by enum values. + The header now only defines functions to convert + between binary and dotted string OID representations, and macros + for OID strings that are relevant to X.509. + The compilation option MBEDTLS_OID_C no longer + exists. OID tables are included in the build automatically as needed. diff --git a/ChangeLog.d/psa-always-on.txt b/ChangeLog.d/psa-always-on.txt new file mode 100644 index 0000000000..6607e9fe40 --- /dev/null +++ b/ChangeLog.d/psa-always-on.txt @@ -0,0 +1,11 @@ +Default behavior changes + * The X.509 and TLS modules now always use the PSA subsystem + to perform cryptographic operations, with a few exceptions documented + in docs/architecture/psa-migration/psa-limitations.md. This + corresponds to the behavior of Mbed TLS 3.x when + MBEDTLS_USE_PSA_CRYPTO is enabled. In effect, MBEDTLS_USE_PSA_CRYPTO + is now always enabled. + * psa_crypto_init() must be called before performing any cryptographic + operation, including indirect requests such as parsing a key or + certificate or starting a TLS handshake. + diff --git a/ChangeLog.d/removal-of-rng.txt b/ChangeLog.d/removal-of-rng.txt new file mode 100644 index 0000000000..7ecb29ffb7 --- /dev/null +++ b/ChangeLog.d/removal-of-rng.txt @@ -0,0 +1,6 @@ +API changes + * All API functions now use the PSA random generator psa_generate_random() + internally. As a consequence, functions no longer take RNG parameters. + Please refer to the migration guide at : + docs/4.0-migration-guide.md. + diff --git a/ChangeLog.d/remove-compat-2.x.txt b/ChangeLog.d/remove-compat-2.x.txt new file mode 100644 index 0000000000..37f012c217 --- /dev/null +++ b/ChangeLog.d/remove-compat-2.x.txt @@ -0,0 +1,2 @@ +Removals + * Remove compat-2-x.h header from mbedtls. diff --git a/ChangeLog.d/remove_RSA_key_exchange.txt b/ChangeLog.d/remove_RSA_key_exchange.txt new file mode 100644 index 0000000000..f9baaf1701 --- /dev/null +++ b/ChangeLog.d/remove_RSA_key_exchange.txt @@ -0,0 +1,2 @@ +Removals + * Remove support for the RSA key exchange in TLS 1.2. diff --git a/ChangeLog.d/replace-close-with-mbedtls_net_close.txt b/ChangeLog.d/replace-close-with-mbedtls_net_close.txt new file mode 100644 index 0000000000..213cf55b40 --- /dev/null +++ b/ChangeLog.d/replace-close-with-mbedtls_net_close.txt @@ -0,0 +1,4 @@ +Bugfix + * Use 'mbedtls_net_close' instead of 'close' in 'mbedtls_net_bind' + and 'mbedtls_net_connect' to prevent possible double close fd + problems. Fixes #9711. diff --git a/ChangeLog.d/repo-split.txt b/ChangeLog.d/repo-split.txt new file mode 100644 index 0000000000..f03b5ed7fe --- /dev/null +++ b/ChangeLog.d/repo-split.txt @@ -0,0 +1,5 @@ +Changes + * Move the crypto part of the library (content of tf-psa-crypto directory) + from the Mbed TLS to the TF-PSA-Crypto repository. The crypto code and + tests development will now occur in TF-PSA-Crypto, which Mbed TLS + references as a Git submodule. diff --git a/ChangeLog.d/rm-ssl-conf-curves.txt b/ChangeLog.d/rm-ssl-conf-curves.txt new file mode 100644 index 0000000000..4b29adc4c9 --- /dev/null +++ b/ChangeLog.d/rm-ssl-conf-curves.txt @@ -0,0 +1,4 @@ +Removals + * Remove the function mbedtls_ssl_conf_curves() which had been deprecated + in favour of mbedtls_ssl_conf_groups() since Mbed TLS 3.1. + diff --git a/ChangeLog.d/split-numeric-string-conversions-out-of-the-oid-module.txt b/ChangeLog.d/split-numeric-string-conversions-out-of-the-oid-module.txt new file mode 100644 index 0000000000..938e9eccb6 --- /dev/null +++ b/ChangeLog.d/split-numeric-string-conversions-out-of-the-oid-module.txt @@ -0,0 +1,4 @@ +Changes + * Functions regarding numeric string conversions for OIDs have been moved + from the OID module and now reside in X.509 module. This helps to reduce + the code size as these functions are not commonly used outside of X.509. diff --git a/ChangeLog.d/tls-hs-defrag-in.txt b/ChangeLog.d/tls-hs-defrag-in.txt new file mode 100644 index 0000000000..6bab02a029 --- /dev/null +++ b/ChangeLog.d/tls-hs-defrag-in.txt @@ -0,0 +1,7 @@ +Bugfix + * Support re-assembly of fragmented handshake messages in TLS (both + 1.2 and 1.3). The lack of support was causing handshake failures with + some servers, especially with TLS 1.3 in practice. There are a few + limitations, notably a fragmented ClientHello is only supported when + TLS 1.3 support is enabled. See the documentation of + mbedtls_ssl_handshake() for details. diff --git a/ChangeLog.d/tls-key-exchange-rsa.txt b/ChangeLog.d/tls-key-exchange-rsa.txt new file mode 100644 index 0000000000..4df6b3e303 --- /dev/null +++ b/ChangeLog.d/tls-key-exchange-rsa.txt @@ -0,0 +1,2 @@ +Removals + * Remove support for the RSA-PSK key exchange in TLS 1.2. diff --git a/ChangeLog.d/tls12-check-finished-calc.txt b/ChangeLog.d/tls12-check-finished-calc.txt new file mode 100644 index 0000000000..cd52d32ffd --- /dev/null +++ b/ChangeLog.d/tls12-check-finished-calc.txt @@ -0,0 +1,6 @@ +Security + * Fix a vulnerability in the TLS 1.2 handshake. If memory allocation failed + or there was a cryptographic hardware failure when calculating the + Finished message, it could be calculated incorrectly. This would break + the security guarantees of the TLS handshake. + CVE-2025-27810 diff --git a/ChangeLog.d/tls13-cert-regressions.txt b/ChangeLog.d/tls13-cert-regressions.txt new file mode 100644 index 0000000000..8dd8a327d6 --- /dev/null +++ b/ChangeLog.d/tls13-cert-regressions.txt @@ -0,0 +1,18 @@ +Bugfix + * Fixed a regression introduced in 3.6.0 where the CA callback set with + mbedtls_ssl_conf_ca_cb() would stop working when connections were + upgraded to TLS 1.3. Fixed by adding support for the CA callback with TLS + 1.3. + * Fixed a regression introduced in 3.6.0 where clients that relied on + optional/none authentication mode, by calling mbedtls_ssl_conf_authmode() + with MBEDTLS_SSL_VERIFY_OPTIONAL or MBEDTLS_SSL_VERIFY_NONE, would stop + working when connections were upgraded to TLS 1.3. Fixed by adding + support for optional/none with TLS 1.3 as well. Note that the TLS 1.3 + standard makes server authentication mandatory; users are advised not to + use authmode none, and to carefully check the results when using optional + mode. + * Fixed a regression introduced in 3.6.0 where context-specific certificate + verify callbacks, set with mbedtls_ssl_set_verify() as opposed to + mbedtls_ssl_conf_verify(), would stop working when connections were + upgraded to TLS 1.3. Fixed by adding support for context-specific verify + callback in TLS 1.3. diff --git a/ChangeLog.d/tls13-middlebox-compat-disabled.txt b/ChangeLog.d/tls13-middlebox-compat-disabled.txt new file mode 100644 index 0000000000..f5331bc063 --- /dev/null +++ b/ChangeLog.d/tls13-middlebox-compat-disabled.txt @@ -0,0 +1,4 @@ +Bugfix + * When MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE is disabled, work with + peers that have middlebox compatibility enabled, as long as no + problematic middlebox is in the way. Fixes #9551. diff --git a/ChangeLog.d/tls13-without-tickets.txt b/ChangeLog.d/tls13-without-tickets.txt new file mode 100644 index 0000000000..8ceef21ee5 --- /dev/null +++ b/ChangeLog.d/tls13-without-tickets.txt @@ -0,0 +1,3 @@ +Bugfix + * Fix TLS 1.3 client build and runtime when support for session tickets is + disabled (MBEDTLS_SSL_SESSION_TICKETS configuration option). Fixes #6395. diff --git a/ChangeLog.d/unterminated-string-initialization.txt b/ChangeLog.d/unterminated-string-initialization.txt new file mode 100644 index 0000000000..75a72cae6b --- /dev/null +++ b/ChangeLog.d/unterminated-string-initialization.txt @@ -0,0 +1,3 @@ +Bugfix + * Silence spurious -Wunterminated-string-initialization warnings introduced + by GCC 15. Fixes #9944. diff --git a/ChangeLog.d/x509write_crt_set_serial_raw-alignment.txt b/ChangeLog.d/x509write_crt_set_serial_raw-alignment.txt index e04f45a488..e7ac54684c 100644 --- a/ChangeLog.d/x509write_crt_set_serial_raw-alignment.txt +++ b/ChangeLog.d/x509write_crt_set_serial_raw-alignment.txt @@ -1,3 +1,3 @@ API changes - * Change the serial argument of the mbedtls_x509write_crt_set_serial_raw - function to a const to align with the rest of the API. + * Change the serial argument of the mbedtls_x509write_crt_set_serial_raw + function to a const to align with the rest of the API.