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CVE-2011-4352

Published: 25 November 2011

Integer overflow in the vp3_dequant function in the VP3 decoder (vp3.c) in libavcodec in FFmpeg 0.5.x before 0.5.7, 0.6.x before 0.6.4, 0.7.x before 0.7.9, and 0.8.x before 0.8.8; and in Libav 0.5.x before 0.5.6, 0.6.x before 0.6.4, and 0.7.x before 0.7.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted VP3 stream, which triggers a buffer overflow.

Notes

AuthorNote
mdeslaur
ffmpeg-extra in multiverse needs to have matching version
libav-extra is built with tarball produced by libav package
libav doesn't seem to have equivalent patch yet as of 2012-12-22
See thread: http://thread.gmane.org/gmane.comp.video.libav.devel/15121
this fixes NGS00145
Priority

Medium

Status

Package Release Status
ffmpeg
Launchpad, Ubuntu, Debian
hardy Ignored
(reached end-of-life)
lucid Not vulnerable
(code not present)
maverick
Released (4:0.6-2ubuntu6.3)
natty Does not exist

oneiric Does not exist

upstream Needs triage

Patches:
upstream: http://git.videolan.org/?p=ffmpeg.git;a=commit;h=eef5c35b4352ec49ca41f6198bee8a976b1f81e5

ffmpeg-extra
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable
(code not present)
maverick
Released (4:0.6-2ubuntu3.3)
natty Does not exist

oneiric Does not exist

upstream Needs triage

libav
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

maverick Does not exist

natty
Released (4:0.6.4-0ubuntu0.11.04.1)
oneiric
Released (4:0.7.3-0ubuntu0.11.10.1)
upstream
Released (0.7.3)
Patches:

upstream: http://git.libav.org/?p=libav.git;a=commit;h=8b94df0f2047e9728cb872adc9e64557b7a5152f
libav-extra
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

maverick Does not exist

natty
Released (4:0.6.4-1ubuntu1)
oneiric
Released (4:0.7.3ubuntu0.11.10.1)
upstream Needs triage