Source: zlib Version: 1:1.3.dfsg+really1.3.1-1 Severity: important Tags: security upstream Forwarded: https://github.com/madler/zlib/issues/904 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for zlib. CVE-2026-27171[0]: | zlib before 1.3.2 allows CPU consumption via crc32_combine64 and | crc32_combine_gen64 because x2nmodp can do right shifts within a | loop that has no termination condition. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-27171 https://www.cve.org/CVERecord?id=CVE-2026-27171 [1] https://github.com/madler/zlib/issues/904 [2] https://github.com/madler/zlib/commit/ba829a458576d1ff0f26fc7230c6de816d1f6a77 Please adjust the affected versions in the BTS as needed. Regards, Salvatore

