cve/2020/CVE-2020-21688.md

### [CVE-2020-21688](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21688)
![](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

A heap-use-after-free in the av_freep function in libavutil/mem.c of FFmpeg 4.2 allows attackers to execute arbitrary code.

### POC

#### Reference
- https://trac.ffmpeg.org/ticket/8186
- https://trac.ffmpeg.org/ticket/8186

#### Github
- https://github.com/ARPSyndicate/cvemon