{"id":"CVE-2019-9718","details":"In FFmpeg 3.2 and 4.1, a denial of service in the subtitle decoder allows attackers to hog the CPU via a crafted video file in Matroska format, because ff_htmlmarkup_to_ass in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.","modified":"2026-05-14T04:03:07.957952385Z","published":"2019-03-12T09:29:00.530Z","related":["SUSE-SU-2019:3184-1","SUSE-SU-2019:3184-2"],"database_specific":{"unresolved_ranges":[{"cpe":"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","source":"CPE_FIELD","extracted_events":[{"last_affected":"18.04"}]},{"cpe":"cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"last_affected":"18.10"}]},{"cpe":"cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"last_affected":"19.04"}]},{"cpe":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"last_affected":"9.0"}]}]},"references":[{"type":"WEB","url":"http://www.securityfocus.com/bid/107382"},{"type":"ADVISORY","url":"https://seclists.org/bugtraq/2019/May/60"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3967-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2019/dsa-4449"},{"type":"FIX","url":"https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/1f00c97bc3475c477f3c468cf2d924d5761d0982"},{"type":"FIX","url":"https://github.com/FFmpeg/FFmpeg/commit/23ccf3cabb4baf6e8af4b1af3fcc59c904736f21"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.ffmpeg.org/ffmpeg.git","events":[{"introduced":"0"},{"fixed":"1f00c97bc3475c477f3c468cf2d924d5761d0982"}],"database_specific":{"source":"REFERENCES"}}],"versions":["n4.2-dev","n4.1-dev","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/osv-test-cve-osv-conversion/osv-output/CVE-2019-9718.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/ffmpeg/ffmpeg","events":[{"introduced":"0"},{"last_affected":"340cea9f22c162e10d120835661e132721b7454b"},{"last_affected":"3c1ecb057d7621e57968624aa15ad3e9efc819f7"}],"database_specific":{"cpe":["cpe:2.3:a:ffmpeg:ffmpeg:3.2:*:*:*:*:*:*:*","cpe:2.3:a:ffmpeg:ffmpeg:4.1:*:*:*:*:*:*:*"],"source":"CPE_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"3.2"},{"last_affected":"4.1"}]}}],"versions":["n4.1-dev","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/osv-test-cve-osv-conversion/osv-output/CVE-2019-9718.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"}]}