cve/2021/CVE-2021-3541.md

### [CVE-2021-3541](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3541)
![](https://img.shields.io/static/v1?label=Product&message=libxml2&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Denial%20of%20Service&color=brighgreen)

### Description

A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.

### POC

#### Reference
- https://www.oracle.com/security-alerts/cpujan2022.html

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/Exein-io/kepler