The ff_h263_decode_mba function in libavcodec/ituh263dec.c in Libav before 11.5 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a file with crafted dimensions.
lists.opensuse.org/opensuse-updates/2016-06/msg00105.html
www.securityfocus.com/bid/75932
www.ubuntu.com/usn/USN-2944-1
blogs.gentoo.org/ago/2015/07/16/libav-divide-by-zero-in-ff_h263_decode_mba/
git.libav.org/?p=libav.git;a=commitdiff;h=0a49a62f998747cfa564d98d36a459fe70d3299b
libav.org/releases/libav-11.5.changelog