Opened 11 months ago
Closed 11 months ago
New point version.
* Version 3.6.15 (releases 2020-09-04)
** libgnutls: Fixed "no_renegotiation" alert handling at incorrect timing.
The server sending a "no_renegotiation" alert in an unexpected timing,
followed by an invalid second handshake was able to cause a TLS 1.3 client to
crash via a null-pointer dereference. The crash happens in the application's
error handling path, where the gnutls_deinit function is called after
detecting a handshake failure (#1071). [GNUTLS-SA-2020-09-04, CVSS: medium]
** libgnutls: If FIPS self-tests are failed, gnutls_fips140_mode_enabled() now
indicates that with a false return value (!1306).
** libgnutls: Under FIPS mode, the generated ECDH/DH public keys are checked
accordingly to SP800-56A rev 3 (!1295, !1299).
** libgnutls: gnutls_x509_crt_export2() now returns 0 upon success, rather than
the size of the internal base64 blob (#1025). The new behavior aligns to the
** libgnutls: Certificate verification failue due to OCSP must-stapling is not
honered is now correctly marked with the GNUTLS_CERT_INVALID flag
(!1317). The new behavior aligns to the existing documentation.
** libgnutls: The audit log message for weak hashes is no longer printed twice
** libgnutls: Fixed version negotiation when TLS 1.3 is enabled and TLS 1.2 is
disabled in the priority string. Previously, even when TLS 1.2 is explicitly
disabled with "-VERS-TLS1.2", the server still offered TLS 1.2 if TLS 1.3 is
** API and ABI modifications:
No changes since last version.
See https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04 for the security advisory (rated moderate).
fixed at r23681
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