CVE-2021-38171

Name	CVE-2021-38171
Description	adts_decode_extradata in libavformat/adtsenc.c in FFmpeg 4.4 does not check the init_get_bits return value, which is a necessary step because the second argument to init_get_bits can be crafted.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2818-1, DSA-4990-1, DSA-4998-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ffmpeg (PTS)	bullseye (security), bullseye	7:4.3.7-0+deb11u1	fixed
	bookworm, bookworm (security)	7:5.1.6-0+deb12u1	fixed
	sid, trixie	7:7.0.2-3	fixed

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

Package	Type	Release	Fixed Version	Origin
ffmpeg	source	stretch	7:3.2.16-1+deb9u1	DLA-2818-1
ffmpeg	source	buster	7:4.1.8-0+deb10u1	DSA-4990-1
ffmpeg	source	bullseye	7:4.3.3-0+deb11u1	DSA-4998-1
ffmpeg	source	(unstable)	7:4.4.1-1

https://github.com/FFmpeg/FFmpeg/commit/9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6