cve/2021/CVE-2021-23437.md

### [CVE-2021-23437](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23437)
![](https://img.shields.io/static/v1?label=Product&message=Pillow&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3E%3D%200%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Regular%20Expression%20Denial%20of%20Service%20(ReDoS)&color=brighgreen)

### Description

The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/NaInSec/CVE-LIST
- https://github.com/arneso-ssb/py-r-vul-examples
- https://github.com/engn33r/awesome-redos-security
- https://github.com/nnrogers515/discord-coderbot