python311-rfc3161-client-1.0.3-1.1 on GA media SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2025:16344 Final 1 1 2025-07-03T00:00:00Z current 2025-07-03T00:00:00Z 2025-07-03T00:00:00Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z python311-rfc3161-client-1.0.3-1.1 on GA media These are all security issues fixed in the python311-rfc3161-client-1.0.3-1.1 package on the GA media of openSUSE Tumbleweed. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-Tumbleweed-2025-16344 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/security/rating/ SUSE Security Ratings https://www.suse.com/security/cve/CVE-2025-52556/ SUSE CVE CVE-2025-52556 page openSUSE Tumbleweed python311-rfc3161-client-1.0.3-1.1 python312-rfc3161-client-1.0.3-1.1 python313-rfc3161-client-1.0.3-1.1 python311-rfc3161-client-1.0.3-1.1 as a component of openSUSE Tumbleweed python312-rfc3161-client-1.0.3-1.1 as a component of openSUSE Tumbleweed python313-rfc3161-client-1.0.3-1.1 as a component of openSUSE Tumbleweed rfc3161-client is a Python library implementing the Time-Stamp Protocol (TSP) described in RFC 3161. Prior to version 1.0.3, there is a flaw in the timestamp response signature verification logic. In particular, chain verification is performed against the TSR's embedded certificates up to the trusted root(s), but fails to verify the TSR's own signature against the timestamping leaf certificates. Consequently, vulnerable versions perform insufficient signature validation to properly consider a TSR verified, as the attacker can introduce any TSR signature so long as the embedded leaf chains up to some root TSA. This issue has been patched in version 1.0.3. There is no workaround for this issue. CVE-2025-52556 openSUSE Tumbleweed:python311-rfc3161-client-1.0.3-1.1 openSUSE Tumbleweed:python312-rfc3161-client-1.0.3-1.1 openSUSE Tumbleweed:python313-rfc3161-client-1.0.3-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-52556.html CVE-2025-52556 https://bugzilla.suse.com/1245174 SUSE Bug 1245174