The ape_read_header function in ape.c in libavformat in FFmpeg before 0.5.4, as used in MPlayer, VideoLAN VLC media player, and other products, allows remote attackers to cause a denial of service (application crash) via an APE (aka Monkey's Audio) file that contains a header but no frames.
https://github.com/FFmpeg/FFmpeg/commit/8312e3fc9041027a33c8bc667bb99740fdf41dd5