{"id":"CVE-2018-6621","details":"The decode_frame function in libavcodec/utvideodec.c in FFmpeg through 3.2 allows remote attackers to cause a denial of service (out of array read) via a crafted AVI file.","modified":"2026-08-17T05:26:06.161375Z","published":"2018-02-05T04:29:00.917Z","related":["openSUSE-SU-2018:0470-1","openSUSE-SU-2018:0476-1","openSUSE-SU-2024:10754-1"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*","cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.0"},{"last_affected":"8.0"},{"introduced":"9.0"},{"last_affected":"9.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux"}]},"references":[{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/102950"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4249"},{"type":"FIX","url":"https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/118e1b0b3370dd1c0da442901b486689efd1654b"},{"type":"FIX","url":"https://github.com/FFmpeg/FFmpeg/commit/22aa37c0fedf14531783189a197542a055959b6c"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.ffmpeg.org/ffmpeg.git","events":[{"introduced":"0"},{"last_affected":"340cea9f22c162e10d120835661e132721b7454b"},{"fixed":"118e1b0b3370dd1c0da442901b486689efd1654b"}],"database_specific":{"cpe":"cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"3.2"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["n3.5-dev","n3.4-dev","n3.3-dev","n3.2-dev","n3.1-dev","n2.9-dev","n2.8-dev","n2.7-dev","n2.6-dev","n2.5-dev","n2.4-dev","n2.3-dev","n2.2-dev","n2.0","n2.1-dev","n1.3-dev","n1.2-dev","n1.1-dev","n0.12-dev","n0.11-dev","n0.8","N"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-6621.json","vanir_signatures_modified":"2026-08-17T05:26:06Z","vanir_signatures":[{"target":{"file":"libavcodec/utvideodec.c","function":"decode_frame"},"deprecated":false,"digest":{"function_hash":"132111012655482481589087942413624966438","length":9403},"id":"CVE-2018-6621-89710e07","signature_type":"Function","signature_version":"v1","source":"https://git.ffmpeg.org/ffmpeg.git@118e1b0b3370dd1c0da442901b486689efd1654b"}]}},{"ranges":[{"type":"GIT","repo":"https://github.com/ffmpeg/ffmpeg","events":[{"introduced":"0"},{"last_affected":"340cea9f22c162e10d120835661e132721b7454b"},{"fixed":"22aa37c0fedf14531783189a197542a055959b6c"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"3.2"}],"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*"}}],"versions":["n3.2.10","n3.2.9","n3.2.8","n3.2.7","n3.2.6","n3.2.5","n3.2.4","n3.2.3","n3.2.2","n3.2.1","n3.2","n3.2-dev","n3.1-dev","n2.9-dev","n2.8-dev","n2.7-dev","n2.6-dev","n2.5-dev","n2.4-dev","n2.3-dev","n2.2-dev","n2.0","n2.1-dev","n1.3-dev","n1.2-dev","n1.1-dev","n0.12-dev","n0.11-dev","n0.8","N"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-6621.json","vanir_signatures_modified":"2026-08-17T05:26:06Z","vanir_signatures":[{"digest":{"function_hash":"118628482742309640807246975102458427469","length":6485},"id":"CVE-2018-6621-04420188","signature_type":"Function","signature_version":"v1","source":"https://github.com/ffmpeg/ffmpeg/commit/22aa37c0fedf14531783189a197542a055959b6c","target":{"function":"decode_frame","file":"libavcodec/utvideodec.c"},"deprecated":false}]}}],"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"}]}