OpenSSL 3.5.4 is a security patch release. The most severe CVE fixed in this release is Moderate.
This release incorporates the following bug fixes and mitigations:
* Fix Out-of-bounds read & write in RFC 3211 KEK Unwrap. (CVE-2025-9230)
* Fix Timing side-channel in SM2 algorithm on 64 bit ARM. (CVE-2025-9231)
* Fix Out-of-bounds read in HTTP client no_proxy handling. (CVE-2025-9232)
* Reverted the synthesised OPENSSL_VERSION_NUMBER change for the release builds, as it broke some exiting applications that relied on the previous 3.x semantics, as documented in OpenSSL_version(3).
OpenSSL 3.5.3 is a bug fix release.
This release incorporates the following bug fixes and mitigations:
* Added FIPS 140-3 PCT on DH key generation.
* Fixed the synthesised OPENSSL_VERSION_NUMBER.
* Removed PCT on key import in the FIPS provider as it is not required by the standard.
Signed-off-by: Peter Marko <peter.marko@siemens.com> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>