{"id":"DEBIAN-CVE-2021-45909","details":"An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow vulnerability in the DecodeLZW function. It allows an attacker to write a large amount of arbitrary data outside the boundaries of a buffer.","modified":"2026-08-27T23:04:43.241678687Z","published":"2021-12-28T01:15:07.520Z","upstream":["CVE-2021-45909"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-45909"}],"affected":[{"package":{"name":"gif2apng","ecosystem":"Debian:11","purl":"pkg:deb/debian/gif2apng?arch=source&distro=bullseye"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9+srconly-3+deb11u1"}]}],"versions":["1.9+srconly-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-45909.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}