CVEs-PoC/2021/CVE-2021-40656.md

### [CVE-2021-40656](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40656)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

libsixel before 1.10 is vulnerable to Buffer Overflow in libsixel/src/quant.c:867.

### POC

#### Reference
- https://github.com/libsixel/libsixel/issues/25

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/a4865g/Cheng-fuzz