CVEs-PoC/2022/CVE-2022-21716.md

CVE-2022-21716

Description

Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer's SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as nc -rv localhost 22 < /dev/zero. A patch is available in version 22.2.0. There are currently no known workarounds.

POC

Reference

• https://www.oracle.com/security-alerts/cpuapr2022.html

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/karimhabush/cyberowl
• https://github.com/vin01/CVEs