CVEs-PoC/2021/CVE-2021-31808.md

### [CVE-2021-31808](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31808)
![](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

An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/MegaManSec/Squid-Security-Audit