The dv_extract_audio function 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 application crash) via a crafted DV file.
http://www.ubuntu.com/usn/USN-1479-1
http://www.debian.org/security/2012/dsa-2471
http://secunia.com/advisories/49089
http://git.libav.org/?p=libav.git%3Ba=commitdiff%3Bh=2d1c0dea5f6b91bec7f5fa53ec050913d851e366
http://git.libav.org/?p=libav.git%3Ba=commit%3Bh=635bcfccd439480003b74a665b5aa7c872c1ad6b