Unspecified vulnerability in libavcodec/wmalosslessdec.c in FFmpeg before 0.11 has unknown impact and attack vectors, related to the "put bit buffer when num_saved_bits is reset."
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://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=64bd7f8e4db1742e86c5ed02bd530688b74063e3