CVE-2009-4633

Name	CVE-2009-4633
Description	vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended, which might allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that modifies a loop counter and triggers a heap-based buffer overflow.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-2000-1
Debian Bugs	550442

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ffmpeg (PTS)	stretch (security)	7:3.2.18-0+deb9u1	fixed
	stretch (lts), stretch	7:3.2.19-0+deb9u5	fixed
	buster, buster (lts)	7:4.1.11-0+deb10u2	fixed
	buster (security)	7:4.1.11-0+deb10u1	fixed
	bullseye	7:4.3.7-0+deb11u1	fixed
	bullseye (security)	7:4.3.8-0+deb11u1	fixed
	bookworm (security), bookworm	7:5.1.6-0+deb12u1	fixed
	sid, trixie	7:7.1-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
ffmpeg	source	(unstable)	4:0.5+svn20090706-3			550442
ffmpeg-debian	source	lenny	0.svn20080206-18+lenny1		DSA-2000-1
ffmpeg-debian	source	(unstable)	(unfixed)