{"id":"UBUNTU-CVE-2021-45911","details":"An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow in the main function. It allows an attacker to write 2 bytes outside the boundaries of the buffer.","modified":"2026-02-04T03:20:57.849797Z","published":"2021-12-28T01:15:00Z","related":["USN-5969-1"],"upstream":["CVE-2021-45911"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-45911"},{"type":"REPORT","url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002687"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5969-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-45911"}],"affected":[{"package":{"name":"gif2apng","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/gif2apng@1.7-3ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7-3ubuntu0.1~esm1"}]}],"versions":["1.7-3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"gif2apng","binary_version":"1.7-3ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-45911.json"}},{"package":{"name":"gif2apng","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/gif2apng@1.9+srconly-2ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9+srconly-2ubuntu0.1"}]}],"versions":["1.9+srconly-2"],"ecosystem_specific":{"binaries":[{"binary_name":"gif2apng","binary_version":"1.9+srconly-2ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-45911.json"}},{"package":{"name":"gif2apng","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/gif2apng@1.9+srconly-3ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9+srconly-3ubuntu0.1"}]}],"versions":["1.9+srconly-3","1.9+srconly-3build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"gif2apng","binary_version":"1.9+srconly-3ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-45911.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}