{"id":"MGASA-2026-0295","summary":"Updated giflib packages fix a security vulnerability","details":"The updated packages fix a security vulnerability:\nBuffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker\nto cause a denial of service via the EGifGCBToExtension overwriting an\nexisting Graphic Control Extension block without validating its\nallocated size. (CVE-2026-26740)\n","modified":"2026-07-25T18:15:06.082900970Z","published":"2026-07-25T18:04:08Z","upstream":["CVE-2026-26740"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2026-0295.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=35614"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AG6LRGR6CTYC6R6KKFK2YTY2NJNGE62F/"},{"type":"WEB","url":"https://github.com/zakkanijia/POC/blob/main/giflib/giftool/giflib_giftool_gce_len_heap_oobwrite_disclosure.md"},{"type":"REPORT","url":"https://sourceforge.net/p/giflib/bugs/199/"}],"affected":[{"package":{"name":"giflib","ecosystem":"Mageia:10","purl":"pkg:rpm/mageia/giflib?arch=source&distro=mageia-10"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.2-4.1.mga10"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0295.json"}},{"package":{"name":"giflib","ecosystem":"Mageia:9","purl":"pkg:rpm/mageia/giflib?arch=source&distro=mageia-9"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.1-7.4.mga9"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0295.json"}}],"schema_version":"1.7.5","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}