VulnerabilityModified

CVE-2020-13904

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.

MEDIUM 5.5EPSS 1.29%

Does this matter?

Lower severity and a low EPSS score (1.29%). Track it; it rarely justifies an emergency change on its own.

Description

CVSS 3.1: 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS: 1.29% probability · 69th percentile
CISA KEV: Not listed
Weakness: CWE-416
Affected: ffmpeg/ffmpeg · canonical/ubuntu linux · debian/debian linux
Source: cve@mitre.org

References

https://github.com/FFmpeg/FFmpeg/commit/6959358683c7533f586c07a766acc5fe9544d8b2Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00022.htmlMailing List, Third Party Advisory
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20200529033905.41926-1-lq%40chinaffmpeg.org/
https://security.gentoo.org/glsa/202007-58Third Party Advisory
https://trac.ffmpeg.org/ticket/8673Exploit, Issue Tracking, Vendor Advisory
https://usn.ubuntu.com/4431-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4722Third Party Advisory
https://github.com/FFmpeg/FFmpeg/commit/6959358683c7533f586c07a766acc5fe9544d8b2Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00022.htmlMailing List, Third Party Advisory
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20200529033905.41926-1-lq%40chinaffmpeg.org/
https://security.gentoo.org/glsa/202007-58Third Party Advisory
https://trac.ffmpeg.org/ticket/8673Exploit, Issue Tracking, Vendor Advisory
https://usn.ubuntu.com/4431-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4722Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.