{"id":"UBUNTU-CVE-2020-35964","details":"track_header in libavformat/vividas.c in FFmpeg 4.3.1 has an out-of-bounds write because of incorrect extradata packing.","modified":"2026-04-22T12:40:59.655171Z","published":"2021-01-03T19:15:00Z","upstream":["CVE-2020-35964"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-35964"},{"type":"REPORT","url":"https://github.com/FFmpeg/FFmpeg/commit/27a99e2c7d450fef15594671eef4465c8a166bd7"},{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26622"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-35964"}],"affected":[{"package":{"name":"ffmpeg","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/ffmpeg@7:4.2.7-0ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:4.2.7-0ubuntu0.1"}]}],"versions":["7:4.1.4-1build2","7:4.2.1-2","7:4.2.1-2ubuntu1","7:4.2.2-1build1","7:4.2.2-1ubuntu1","7:4.2.4-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"ffmpeg","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libavcodec-extra","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libavcodec-extra58","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libavcodec58","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libavdevice58","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libavfilter-extra","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libavfilter-extra7","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libavfilter7","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libavformat58","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libavresample4","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libavutil56","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libpostproc55","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libswresample3","binary_version":"7:4.2.7-0ubuntu0.1"},{"binary_name":"libswscale5","binary_version":"7:4.2.7-0ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35964.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}