CVEs-PoC/2021/CVE-2021-4115.md

### [CVE-2021-4115](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4115)
![](https://img.shields.io/static/v1?label=Product&message=polkitd&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-400&color=brighgreen)

### Description

There is a flaw in polkit which can allow an unprivileged user to cause polkit to crash, due to process file descriptor exhaustion. The highest threat from this vulnerability is to availability. NOTE: Polkit process outage duration is tied to the failing process being reaped and a new one being spawned

### POC

#### Reference
- http://packetstormsecurity.com/files/172849/polkit-File-Descriptor-Exhaustion.html
- https://gitlab.freedesktop.org/polkit/polkit/-/issues/141
- https://www.oracle.com/security-alerts/cpujul2022.html

#### Github
No PoCs found on GitHub currently.