cve/2021/CVE-2021-33477.md

### [CVE-2021-33477](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33477)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

rxvt-unicode 9.22, rxvt 2.7.10, mrxvt 0.5.4, and Eterm 0.9.7 allow (potentially remote) code execution because of improper handling of certain escape sequences (ESC G Q). A response is terminated by a newline.

### POC

#### Reference
- https://packetstormsecurity.com/files/162621/rxvt-2.7.0-rxvt-unicode-9.22-Code-Execution.html
- https://www.openwall.com/lists/oss-security/2021/05/17/1

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