CVE-2020-12284

NameCVE-2020-12284
Descriptioncbs_jpeg_split_fragment in libavcodec/cbs_jpeg.c in FFmpeg 4.2.2 has a heap-based buffer overflow during JPEG_MARKER_SOS handling because of a missing length check.
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)
ReferencesDSA-4722-1
NVD severityhigh

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ffmpeg (PTS)stretch7:3.2.14-1~deb9u1fixed
stretch (security)7:3.2.15-0+deb9u1fixed
buster, buster (security)7:4.1.6-1~deb10u1fixed
bullseye, sid7:4.3.1-4fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ffmpegsourcestretch(not affected)
ffmpegsourcebuster7:4.1.6-1~deb10u1DSA-4722-1
ffmpegsource(unstable)7:4.2.3-1

Notes

[stretch] - ffmpeg <not-affected> (Vulnerable code not present)
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19734
https://github.com/FFmpeg/FFmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726

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