CVE-2015-6823

Name	CVE-2015-6823
Description	The allocate_buffers function in libavcodec/alac.c in FFmpeg before 2.7.2 does not initialize certain context data, which allows remote attackers to cause a denial of service (segmentation violation) or possibly have unspecified other impact via crafted Apple Lossless Audio Codec (ALAC) data.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-1611-2

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ffmpeg (PTS)	bullseye	7:4.3.7-0+deb11u1	fixed
	bullseye (security)	7:4.3.9-0+deb11u1	fixed
	bookworm, bookworm (security)	7:5.1.7-0+deb12u1	fixed
	forky, sid, trixie	7:7.1.1-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin
ffmpeg	source	squeeze	(unfixed)	end-of-life
ffmpeg	source	(unstable)	7:2.7.2-1
libav	source	jessie	6:11.12-1~deb8u3		DLA-1611-2
libav	source	(unstable)	(unfixed)

Notes

[squeeze] - ffmpeg <end-of-life> (Not supported in Squeeze LTS)
https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=f7068bf277a37479aecde2832208d820682b35e6