CVE-2018-13305

NameCVE-2018-13305
DescriptionIn FFmpeg 4.0.1, due to a missing check for negative values of the mquant variable, the vc1_put_blocks_clamped function in libavcodec/vc1_block.c may trigger an out-of-array access while converting a crafted AVI file to MPEG4, leading to an information disclosure or 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)
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ffmpeg (PTS)stretch7:3.2.10-1~deb9u1fixed
stretch (security)7:3.2.11-1~deb9u1fixed
buster7:3.4.3-1vulnerable
sid7:4.0.1-2vulnerable
libav (PTS)jessie (security), jessie6:11.12-1~deb8u1undetermined

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ffmpegsource(unstable)(unfixed)medium
ffmpegsourcestretch(not affected)
libavsource(unstable)undeterminedmedium

Notes

[stretch] - ffmpeg <not-affected> (Vulnerable code not present)
https://github.com/FFmpeg/FFmpeg/commit/d08d4a8c7387e758d439b0592782e4cfa2b4d6a4

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