CVE-2017-9994

Name	CVE-2017-9994
Description	libavcodec/webp.c in FFmpeg before 2.8.12, 3.0.x before 3.0.8, 3.1.x before 3.1.8, 3.2.x before 3.2.5, and 3.3.x before 3.3.1 does not ensure that pix_fmt is set, which allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file, related to the vp8_decode_mb_row_no_filter and pred8x8_128_dc_8_c functions.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-1630-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ffmpeg (PTS)	buster	7:4.1.9-0+deb10u1	fixed
	buster (security)	7:4.1.10-0+deb10u1	fixed
	bullseye	7:4.3.5-0+deb11u1	fixed
	bullseye (security)	7:4.3.6-0+deb11u1	fixed
	bookworm, sid	7:5.1.3-1	fixed

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

Package	Type	Release	Fixed Version	Origin
ffmpeg	source	(unstable)	7:3.2.5-1
libav	source	wheezy	(not affected)
libav	source	jessie	6:11.12-1~deb8u4	DLA-1630-1
libav	source	(unstable)	(unfixed)

Notes

[wheezy] - libav <not-affected> (Vulnerable code not present, WebP decoder feature introduced in v10)
https://github.com/FFmpeg/FFmpeg/commit/6b5d3fb26fb4be48e4966e4b1d97c2165538d4ef