CVEs-PoC/2021/CVE-2021-33656.md

### [CVE-2021-33656](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33656)
![](https://img.shields.io/static/v1?label=Product&message=openEuler%3Akernel&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C5.10.127%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-787%20Out-of-bounds%20Write&color=brightgreen)

### Description

When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon