CVE-2020-20450

NameCVE-2020-20450
DescriptionFFmpeg 4.2 is affected by null pointer dereference passed as argument to libavformat/aviobuf.c, which could cause a Denial of Service.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ffmpeg (PTS)stretch7:3.2.14-1~deb9u1vulnerable
stretch (security)7:3.2.15-0+deb9u4vulnerable
buster, buster (security)7:4.1.6-1~deb10u1vulnerable
bullseye7:4.3.2-0+deb11u2vulnerable
bookworm7:4.4-5fixed
sid7:4.4-6fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ffmpegsourceexperimental7:4.4-1
ffmpegsource(unstable)7:4.4-5unimportant

Notes

https://trac.ffmpeg.org/ticket/7993
https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=5400e4a50c61e53e1bc50b3e77201649bbe9c510
https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=3865b1952e5cf993b016d83ba78fe1deb63bbfad (4.3)
Negligible security impact

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