{"id":"CVE-2020-22020","details":"Buffer Overflow vulnerability in FFmpeg 4.2 in the build_diff_map function in libavfilter/vf_fieldmatch.c, which could let a remote malicious user cause a Denial of Service.","modified":"2026-08-17T03:47:24.622700797Z","published":"2021-05-26T20:15:08.207Z","related":["SUSE-SU-2021:2322-1","SUSE-SU-2021:2929-1","openSUSE-SU-2021:2322-1"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"9.0"},{"last_affected":"9.0"},{"introduced":"10.0"},{"last_affected":"10.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux"}]},"references":[{"type":"WEB","url":"http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=ce5274c1385d55892a692998923802023526b765"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2021/dsa-4990"},{"type":"REPORT","url":"https://trac.ffmpeg.org/ticket/8239"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.ffmpeg.org/ffmpeg.git","events":[{"introduced":"517573a67088b5c7a25c18373434e3448892ee93"},{"last_affected":"517573a67088b5c7a25c18373434e3448892ee93"}],"database_specific":{"extracted_events":[{"introduced":"4.2-NA"},{"last_affected":"4.2-NA"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:*"}}],"versions":["4.2-NA","n4.2-dev"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-22020.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/ffmpeg/ffmpeg","events":[{"introduced":"517573a67088b5c7a25c18373434e3448892ee93"},{"last_affected":"517573a67088b5c7a25c18373434e3448892ee93"}],"database_specific":{"source":"CPE_STRING","cpe":"cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:*","extracted_events":[{"introduced":"4.2-NA"},{"last_affected":"4.2-NA"}]}}],"versions":["4.2-NA","n4.2-dev"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-22020.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}