CVE-2017-7866

NameCVE-2017-7866
DescriptionFFmpeg before 2017-01-23 has an out-of-bounds write caused by a stack-based buffer overflow related to the decode_zbuf function in libavcodec/pngdec.c.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ffmpeg (PTS)stretch7:3.2.12-1~deb9u1fixed
stretch (security)7:3.2.14-1~deb9u1fixed
buster, sid7:4.1.3-1fixed
libav (PTS)jessie6:11.12-1~deb8u1fixed
jessie (security)6:11.12-1~deb8u6fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ffmpegsource(unstable)7:3.2.4-1high
libavsource(unstable)(unfixed)high
libavsourcejessie(not affected)

Notes

[jessie] - libav <not-affected> (vulnerable code not present)
Fixed by: https://github.com/FFmpeg/FFmpeg/commit/e371f031b942d73e02c090170975561fabd5c264

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