CVE-2012-0850

Publication date 14 February 2012

Last updated 24 July 2024

Ubuntu priority

The sbr_qmf_synthesis function in libavcodec/aacsbr.c in FFmpeg before 0.9.1 allows remote attackers to cause a denial of service (application crash) via a crafted mpg file that triggers memory corruption involving the v_off variable, probably a buffer underflow.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ffmpeg	12.04 LTS precise	Not in release
	11.10 oneiric	Not in release
	11.04 natty	Not in release
	10.10 maverick	Ignored end of life
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Ignored end of life
ffmpeg-extra	12.04 LTS precise	Not in release
	11.10 oneiric	Not in release
	11.04 natty	Not in release
	10.10 maverick	Ignored end of life
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Not in release
libav	12.04 LTS precise	Not affected
	11.10 oneiric	Fixed 4:0.7.6-0ubuntu0.11.10.1
	11.04 natty	Fixed 4:0.6.6-0ubuntu0.11.04.1
	10.10 maverick	Not in release
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release
libav-extra	12.04 LTS precise	Not affected
	11.10 oneiric	Fixed
	11.04 natty	Fixed
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release

Notes

mdeslaur

as of 2012-05-22, no fix in libav 0.6.x and 0.7.x code not present in ffmpeg 0.5.x

Patch details

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

Package	Patch details
ffmpeg	Upstream: http://git.videolan.org/?p=ffmpeg.git;a=commit;h=944f5b2779e4aa63f7624df6cd4de832a53db81b
libav	Upstream: http://git.libav.org/?p=libav.git;a=commit;h=17ce52912f59a74ecc265e062578fb1181456e18

References

Related Ubuntu Security Notices (USN)