CVE-2017-14169

Name	CVE-2017-14169
Description	In the mxf_read_primer_pack function in libavformat/mxfdec.c in FFmpeg 3.3.3 -> 2.4, an integer signedness error might occur when a crafted file, which claims a large "item_num" field such as 0xffffffff, is provided. As a result, the variable "item_num" turns negative, bypassing the check for a large value.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DLA-1654-1, DSA-3996-1
NVD severity	medium

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ffmpeg (PTS)	stretch	7:3.2.14-1~deb9u1	fixed
	stretch (security)	7:3.2.15-0+deb9u2	fixed
	buster, buster (security)	7:4.1.6-1~deb10u1	fixed
	bullseye	7:4.3.1-8	fixed
	sid	7:4.3.2-0+deb11u1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin
ffmpeg	source	stretch	7:3.2.8-1~deb9u1		DSA-3996-1
ffmpeg	source	(unstable)	7:3.3.4-1	low
libav	source	jessie	6:11.12-1~deb8u5		DLA-1654-1
libav	source	(unstable)	(unfixed)

Notes

libav in Jessie uses a different guard for item_num. Check whether
the guard is necessary at all.
https://github.com/FFmpeg/FFmpeg/commit/9d00fb9d70ee8c0cc7002b89318c5be00f1bbdad