CVE-2014-8541

NameCVE-2014-8541
Descriptionlibavcodec/mjpegdec.c in FFmpeg before 2.4.2 considers only dimension differences, and not bits-per-pixel differences, when determining whether an image size has changed, which allows remote attackers to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact via crafted MJPEG data.
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 severityhigh (attack range: remote)
Debian Bugs773626

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ffmpeg (PTS)stretch (security), stretch7:3.2.12-1~deb9u1fixed
buster, sid7:4.1-1fixed
libav (PTS)jessie6:11.12-1~deb8u1fixed
jessie (security)6:11.12-1~deb8u4fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ffmpegsource(unstable)7:2.4.3-1high
ffmpegsourcesqueeze(unfixed)end-of-life
libavsource(unstable)6:11.2-1high773626
libavsourcewheezy(not affected)

Notes

[squeeze] - ffmpeg <end-of-life> (Backports to 0.5.x not useful, too many checks missing)
[wheezy] - libav <not-affected> (Vulnerable code not present)
ffmpeg: http://git.videolan.org/?p=ffmpeg.git;a=commit;h=5c378d6a6df8243f06c87962b873bd563e58cd39
libav: https://git.libav.org/?p=libav.git;a=commit;h=809c3023b699c54c90511913d3b6140dd2436550

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