cve/2020/CVE-2020-22020.md

### [CVE-2020-22020](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22020)
![](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

Buffer Overflow vulnerability in FFmpeg 4.2 in the build_diff_map function in libavfilter/vf_fieldmatch.c, which could let a remote malicious user cause a Denial of Service.

### POC

#### Reference
- https://trac.ffmpeg.org/ticket/8239
- https://trac.ffmpeg.org/ticket/8239

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