CVE-2012-0947 Information

Description

Heap-based buffer overflow in the vqa_decode_chunk function in the VQA codec (vqavideo.c) in libavcodec in Libav 0.5.x before 0.5.9 0.6.x before 0.6.6 0.7.x before 0.7.6 and 0.8.x before 0.8.2 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted VQA media file in which the image size is not a multiple of the block size.

Reference

http://git.libav.org/?p=libav.git;a=commit;h=58b2e0f0f2fc96c1158e04f8aba95cbe6157a1a3 http://libav.org/ http://secunia.com/advisories/49089 http://www.debian.org/security/2012/dsa-2471 http://www.openwall.com/lists/oss-security/2012/05/03/4 http://www.securityfocus.com/bid/53389 http://www.ubuntu.com/usn/USN-1479-1 https://bugs.launchpad.net/ubuntu/+source/libav/+bug/980963