Integer overflow in the asf_write_packet function in libavformat/asfenc.c in FFmpeg before 2.8.5 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted PTS (aka presentation timestamp) value in a .mov file.
https://security.gentoo.org/glsa/201705-08
https://security.gentoo.org/glsa/201606-09
http://www.ubuntu.com/usn/USN-2944-1
http://www.securitytracker.com/id/1035010
http://www.securityfocus.com/bid/84165
http://www.debian.org/security/2016/dsa-3506
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=7c0b84d89911b2035161f5ef51aafbfcc84aa9e2