diff --git a/ChangeLog.d/tls-max-version-reset.txt b/ChangeLog.d/tls-max-version-reset.txt new file mode 100644 index 0000000000..2fa58168c2 --- /dev/null +++ b/ChangeLog.d/tls-max-version-reset.txt @@ -0,0 +1,6 @@ +Security + * Restore the maximum TLS version to be negotiated to the configured one + when an SSL context is reset with the mbedtls_ssl_session_reset() API. + An attacker was able to prevent an Mbed TLS server from establishing any + TLS 1.3 connection potentially resulting in a Denial of Service or forced + version downgrade from TLS 1.3 to TLS 1.2. Fixes #8654 reported by hey3e.