CVE-2012-0848

Publication date 14 February 2012

Last updated 24 July 2024

Heap-based buffer overflow in the ws_snd_decode_frame function in libavcodec/ws-snd1.c in FFmpeg 0.9.1 allows remote attackers to cause a denial of service (application crash) via a crafted media file, related to an incorrect calculation, aka "wrong samples count."

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	Not affected
	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	Not affected
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release

Notes

jdstrand

per upstream, "Simple case of amount written and check mismatching"

mdeslaur

code is different in ffmpeg 0.5.x and libav 0.6.x, probably not vulnerable

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=9fb7a5af97d8c084c3af2566070d09eae0ab49fc
libav	Upstream: http://git.libav.org/?p=libav.git;a=commit;h=9fb7a5af97d8c084c3af2566070d09eae0ab49fc

References

Related Ubuntu Security Notices (USN)