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CVE-2015-6821

Publication date 6 September 2015

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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

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