CVE-2014-7933

NameCVE-2014-7933
DescriptionUse-after-free vulnerability in the matroska_read_seek function in libavformat/matroskadec.c in FFmpeg before 2.5.1, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Matroska file that triggers improper maintenance of tracks 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)
ReferencesDSA-3189-1
NVD severityhigh (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
chromium-browser (PTS)jessie (security), jessie57.0.2987.98-1~deb8u1fixed
stretch69.0.3497.92-1~deb9u1fixed
stretch (security)71.0.3578.80-1~deb9u1fixed
ffmpeg (PTS)stretch (security), stretch7:3.2.12-1~deb9u1fixed
buster, sid7:4.0.3-1fixed
libav (PTS)jessie (security), jessie6:11.12-1~deb8u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
chromium-browsersource(unstable)40.0.2214.91-1high
chromium-browsersourcesqueeze(unfixed)end-of-life
chromium-browsersourcewheezy(unfixed)end-of-life
ffmpegsource(unstable)7:2.5.1-1high
ffmpegsourcesqueeze(unfixed)end-of-life
libavsource(unstable)6:11.3-1high
libavsourcewheezy6:0.8.17-1highDSA-3189-1

Notes

ffmpeg: http://git.videolan.org/?p=ffmpeg.git;a=commit;h=490a3ebf36821b81f73e34ad3f554cb523dd2682
libav: https://git.libav.org/?p=libav.git;a=commit;h=490a3ebf36821b81f73e34ad3f554cb523dd2682

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