DescriptionThe decode_slice_header function in libavcodec/h264.c in FFmpeg before 1.1.2 does not properly check when the pixel format changes, which allows remote attackers to have unspecified impact via crafted H.264 video data, related to an out-of-bounds array access.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ffmpeg (PTS)buster7:4.1.9-0+deb10u1fixed
buster (security)7:4.1.10-0+deb10u1fixed
bullseye (security), bullseye7:4.3.5-0+deb11u1fixed
bookworm, sid7:5.1.2-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libavsource(unstable)(not affected)


[squeeze] - ffmpeg <end-of-life> (Backports to 0.5.x not useful, too many checks missing)
- libav <not-affected> (Code in libav is different/not affect as per libav h264 maintainer);a=commitdiff;h=11c99c78bafa77f679a1a3ba06ad00984b9a4cae

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