{"id":"CVE-2020-13904","details":"FFmpeg 2.8 and 4.2.3 has a use-after-free via a crafted EXTINF duration in an m3u8 file because parse_playlist in libavformat/hls.c frees a pointer, and later that pointer is accessed in av_probe_input_format3 in libavformat/format.c.","modified":"2026-05-17T11:55:17.823201807Z","published":"2020-06-07T19:15:09.703Z","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:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"],"extracted_events":[{"last_affected":"16.04"},{"last_affected":"18.04"},{"last_affected":"20.04"}],"source":"CPE_FIELD","vendor_product":"canonical:ubuntu_linux"},{"extracted_events":[{"last_affected":"9.0"},{"last_affected":"10.0"}],"source":"CPE_FIELD","vendor_product":"debian:debian_linux","cpes":["cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]}]},"references":[{"type":"WEB","url":"https://patchwork.ffmpeg.org/project/ffmpeg/patch/20200529033905.41926-1-lq%40chinaffmpeg.org/"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00022.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202007-58"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4431-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2020/dsa-4722"},{"type":"REPORT","url":"https://trac.ffmpeg.org/ticket/8673"},{"type":"FIX","url":"https://github.com/FFmpeg/FFmpeg/commit/6959358683c7533f586c07a766acc5fe9544d8b2"}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}