### [CVE-2011-3973](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3973)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

cavsdec.c in libavcodec in FFmpeg before 0.7.4 and 0.8.x before 0.8.3 allows remote attackers to cause a denial of service (incorrect write operation and application crash) via an invalid bitstream in a Chinese AVS video (aka CAVS) file, related to the decode_residual_block, check_for_slice, and cavs_decode_frame functions, a different vulnerability than CVE-2011-3362.

### POC

#### Reference
- http://www.ffmpeg.org/releases/ffmpeg-0.7.5.changelog
- http://www.ffmpeg.org/releases/ffmpeg-0.8.4.changelog

#### Github
No PoCs found on GitHub currently.