Heap-based buffer overflow in FFmpeg - CVE-2012-0854

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in The dpcm_decode_frame function in libavcodec/dpcm.c in FFmpeg before 0.9.1 does not use the proper pointer after an audio API change, which. A remote attacker can use unspecified vectors to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

How to mitigate CVE-2012-0854

Sources

• http://ffmpeg.org/security.html
• http://git.videolan.org/?p=ffmpeg.git;a=commit;h=6d8e6fe9dbc365f50521cf0c4a5ffee97c970cb5
• http://www.openwall.com/lists/oss-security/2012/02/01/11
• http://www.openwall.com/lists/oss-security/2012/02/14/4