CVEs-PoC/2021/CVE-2021-22940.md

### [CVE-2021-22940](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22940)
![](https://img.shields.io/static/v1?label=Product&message=Node&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=10.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=11.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=12.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=13.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=14.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=15.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=16.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=4.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=5.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=6.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=7.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=8.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=9.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Use%20After%20Free%20(CWE-416)&color=brightgreen)

### Description

Node.js before 16.6.1, 14.17.5, and 12.22.5 is vulnerable to a use after free attack where an attacker might be able to exploit the memory corruption, to change process behavior.

### POC

#### Reference
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html

#### Github
- https://github.com/20142995/nuclei-templates
- https://github.com/cyb3r-w0lf/nuclei-template-collection