CVE-2015-6821

Publication date 6 September 2015

Last updated 24 July 2024

Ubuntu priority

Description

The ff_mpv_common_init function in libavcodec/mpegvideo.c in FFmpeg before 2.7.2 does not properly maintain the encoding context, which allows remote attackers to cause a denial of service (invalid pointer access) or possibly have unspecified other impact via crafted MPEG data.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ffmpeg	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	17.04 zesty	Not affected
	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	15.10 wily	Not affected
	15.04 vivid	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
libav	18.04 LTS bionic	Not in release
	17.10 artful	Not in release
	17.04 zesty	Not in release
	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	15.10 wily	Not in release
	15.04 vivid	Ignored end of life
	14.04 LTS trusty	Ignored
	12.04 LTS precise	Not affected

Notes

mdeslaur

as of 2016-03-11, no equivalent fix in libav code is different in precise, probably ok

ebarretto

as of 2018-09-27, no equivalent fix in libav

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=b160fc290cf49b516c5b6ee0730fd9da7fc623b1

References

Other references

https://www.cve.org/CVERecord?id=CVE-2015-6821