CVEs-PoC/2020/CVE-2020-6831.md

### [CVE-2020-6831](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6831)
![](https://img.shields.io/static/v1?label=Product&message=Firefox%20ESR&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Thunderbird&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2068.8%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2068.8.0%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2076%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Buffer%20overflow%20in%20SCTP%20chunk%20input%20validation&color=brighgreen)

### Description

A buffer overflow could occur when parsing and validating SCTP chunks in WebRTC. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.

### POC

#### Reference
- http://packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.html

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