Source: giflib Version: 5.2.2-1 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for giflib. CVE-2026-26740[0]: | Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote | attacker to cause a denial of service via the EGifGCBToExtension | overwriting an existing Graphic Control Extension block without | validating its allocated size. 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-2026-26740 https://www.cve.org/CVERecord?id=CVE-2026-26740 [1] https://github.com/zakkanijia/POC/blob/main/giflib/giftool/giflib_giftool_gce_len_heap_oobwrite_disclosure.md Please adjust the affected versions in the BTS as needed. Regards, Salvatore
