Heap-based buffer overflow in the ws_snd_decode_frame function in libavcodec/ws-snd1.c in FFmpeg 0.9.1 allows remote attackers to cause a denial of service (application crash) via a crafted media file, related to an incorrect calculation, aka "wrong samples count."
https://exchange.xforce.ibmcloud.com/vulnerabilities/78936
http://www.openwall.com/lists/oss-security/2012/02/14/4
http://www.openwall.com/lists/oss-security/2012/02/01/11
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=5257743aee0c3982f0079e6553aabc6aa39401d2