CVE-2022-21716highCWE-120

CVE-2022-21716: high-severity vulnerability in twisted

Buffer Overflow in Twisted

Published · Updated

Follow this CVE+ Monitor twisted+ Monitor twisted

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 3.5%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
twisted · twisted
Related CVEs — twisted

In the same product, most dangerous first.

CVE-2022-24801HIGHHTTP Request Smuggling in twisted.webEPSS 2.8%CVE-2022-39348MEDIUMTwisted vulnerable to NameVirtualHost Host header injectionEPSS 1.6%CVE-2022-21712HIGHCookie and header exposure in twistedEPSS 1.4%CVE-2024-41810MEDIUMHTML injection in HTTP redirect bodyEPSS 1.2%CVE-2023-46137MEDIUMtwisted.web has disordered HTTP pipeline responseEPSS 0.9%CVE-2024-41671HIGHtwisted.web has disordered HTTP pipeline responseEPSS 0.9%