CVE-2020-22021

NameCVE-2020-22021
DescriptionBuffer Overflow vulnerability in FFmpeg 4.2 at filter_edges function in libavfilter/vf_yadif.c, which could let a remote malicious user 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)
ReferencesDLA-2742-1
NVD severitymedium
Debian Bugs989439

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+deb9u4fixed
buster, buster (security)7:4.1.6-1~deb10u1vulnerable
bullseye7:4.3.2-0+deb11u2fixed
bookworm7:4.4-5fixed
sid7:4.4-6fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ffmpegsourcestretch7:3.2.15-0+deb9u3DLA-2742-1
ffmpegsource(unstable)7:4.3.2-0+deb11u2989439

Notes

[buster] - ffmpeg <postponed> (Wait for 4.1.7)
https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=7971f62120a55c141ec437aa3f0bacc1c1a3526b
https://trac.ffmpeg.org/ticket/8240

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