Safety vulnerability ID: 45554
The information on this page was manually curated by our Cybersecurity Intelligence Team.
Twisted 22.2.0 includes a fix for CVE-2022-21716: Prior to 22.2.0, Twisted SSH client and server implementation 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.
https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx
Latest version: 24.3.0
An asynchronous networking framework written in Python
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. See CVE-2022-21716.
CONFIRM:https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx: https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx
MISC:https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9: https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9
MISC:https://github.com/twisted/twisted/releases/tag/twisted-22.2.0: https://github.com/twisted/twisted/releases/tag/twisted-22.2.0
MISC:https://twistedmatrix.com/trac/ticket/10284: https://twistedmatrix.com/trac/ticket/10284
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