Unspecified vulnerability in the decode_frame_mp3on4 function in libavcodec/mpegaudiodec.c in FFmpeg before 0.11 and Libav 0.8.x before 0.8.5 has unknown impact and attack vectors related to a calculation that prevents a frame from being "large enough."
http://www.ubuntu.com/usn/USN-1705-1
http://www.securityfocus.com/bid/55355
http://www.openwall.com/lists/oss-security/2012/09/02/4
http://www.openwall.com/lists/oss-security/2012/08/31/3
http://secunia.com/advisories/50468
http://libav.org/releases/libav-0.8.5.changelog
http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=cca9528524c7a4b91451f4322bd50849af5d057e