CVEs-PoC/2021/CVE-2021-3997.md

### [CVE-2021-3997](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3997)
![](https://img.shields.io/static/v1?label=Product&message=systemd&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=Fixed%20in%20v251-rc1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-674%20-%20Uncontrolled%20Recursion&color=brightgreen)

### Description

A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/PajakAlexandre/wik-dps-tp02
- https://github.com/ardhiatno/ubimicro-fluentbit
- https://github.com/marklogic/marklogic-docker