nsvdec.c in libavcodec in FFmpeg 0.7.x before 0.7.12 and 0.8.x before 0.8.11, and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.5, and 0.8.x before 0.8.1, allows remote attackers to cause a denial of service (out-of-bounds read and write) via a crafted NSV file that triggers “use of uninitialized streams.”
ffmpeg.org/
git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=5c011706bc752d34bc6ada31d7df2ca0c9af7c6b
git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=8fd8a48263ff1437f9d02d7e78dc63efb9b5ed3a
git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=c898431ca5ef2a997fe9388b650f658fb60783e5
libav.org/
secunia.com/advisories/49089
www.debian.org/security/2012/dsa-2471
www.ubuntu.com/usn/USN-1479-1