CVE-2017-14056

NameCVE-2017-14056
DescriptionIn libavformat/rl2.c in FFmpeg 3.3.3, a DoS in rl2_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted RL2 file, which claims a large "frame_count" field in the header but does not contain sufficient backing data, is provided, the loops (for offset and size tables) would consume huge CPU and memory resources, since there is no EOF check inside these loops.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3996-1
NVD severityhigh (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ffmpeg (PTS)stretch7:3.2.7-1~deb9u1vulnerable
stretch (security)7:3.2.8-1~deb9u1fixed
buster7:3.4-2fixed
sid7:3.4-3fixed
libav (PTS)wheezy6:0.8.17-2undetermined
wheezy (security)6:0.8.21-0+deb7u1undetermined
jessie6:11.9-1~deb8u1undetermined
jessie (security)6:11.11-1~deb8u1undetermined

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ffmpegsource(unstable)7:3.3.4-1low
ffmpegsourcestretch7:3.2.8-1~deb9u1highDSA-3996-1
libavsource(unstable)undeterminedhigh

Notes

https://github.com/FFmpeg/FFmpeg/commit/96f24d1bee7fe7bac08e2b7c74db1a046c9dc0de

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