CVEs-PoC/2021/CVE-2021-28651.md

### [CVE-2021-28651](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28651)
![](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

An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption.

### POC

#### Reference
No PoCs from references.

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