Double free vulnerability in the vp3_update_thread_context function in libavcodec/vp3.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted vp3 data.
http://www.ffmpeg.org/security.html
http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=247d30a7dba6684ccce4508424f35fd58465e535