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CVE-2012-2802

Publication date 10 September 2012

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Unspecified vulnerability in the ac3_decode_frame function in libavcodec/ac3dec.c in FFmpeg before 0.11 and Libav 0.8.x before 0.8.4 has unknown impact and attack vectors, related to the "number of output channels" and "out of array writes."

Read the notes from the security team

Status

Package Ubuntu Release Status
ffmpeg 13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
11.04 natty Not in release
10.04 LTS lucid Ignored
8.04 LTS hardy Ignored end of life
ffmpeg-extra 13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
11.04 natty Not in release
10.04 LTS lucid Ignored
8.04 LTS hardy Not in release
libav 13.10 saucy
Fixed 6:0.8.4-0ubuntu0.12.10.1
13.04 raring
Fixed 6:0.8.4-0ubuntu0.12.10.1
12.10 quantal
Fixed 6:0.8.4-0ubuntu0.12.10.1
12.04 LTS precise
Fixed 4:0.8.4-0ubuntu0.12.04.1
11.10 oneiric
Fixed 4:0.7.6-0ubuntu0.11.10.3
11.04 natty Ignored end of life
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release
libav-extra 13.10 saucy
Fixed 6:0.8.4ubuntu0.12.10.1
13.04 raring
Fixed 6:0.8.4ubuntu0.12.10.1
12.10 quantal
Fixed 6:0.8.4ubuntu0.12.10.1
12.04 LTS precise
Fixed 4:0.8.4ubuntu0.12.04.1
11.10 oneiric
Fixed 4:0.7.6ubuntu0.11.10.3
11.04 natty Ignored end of life
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release

Notes

mdeslaur

ffmpeg-extra in multiverse needs to have matching version libav-extra is built with tarball produced by libav package cannot locate equivalent libav patch, even though 0.8.4 is supposed to fix it. libav 0.8.5 also says it fixes it, but still cannot locate patch

jdstrand

looking at the logic in the videolan patch and the code in ffmpeg, this may not affect the version of ffmpeg in Ubuntu 10.04 LTS

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
ffmpeg