The jpeg2000_decode_tile function in libavcodec/jpeg2000dec.c in FFmpeg before 2.8.6 allows remote attackers to cause a denial of service (out-of-bounds array read access) via crafted JPEG 2000 data.
https://security.gentoo.org/glsa/201606-09
http://www.securitytracker.com/id/1034923
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=0aada30510d809bccfd539a90ea37b61188f2cb4