CVE-2012-0947

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-08-20 · updated 2026-06-16
Weakness: CWE-119

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.

Affected products

libav: 0.5, 0.5.1, 0.5.2, 0.5.3, 0.5.4, 0.5.5 (+19)

References

http://git.libav.org/?p=libav.git%3Ba=commit%3Bh=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
http://git.libav.org/?p=libav.git%3Ba=commit%3Bh=58b2e0f0f2fc96c1158e04f8aba95cbe6157a1a3
http://libav.org/
http://secunia.com/advisories/49089
http://www.debian.org/security/2012/dsa-2471

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