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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-21716 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9 Patch  Third Party Advisory 
https://github.com/twisted/twisted/releases/tag/twisted-22.2.0 Release Notes  Third Party Advisory 
https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx Exploit  Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2022/03/msg00009.html Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7U6KYDTOLPICAVSR34G2WRYLFBD2YW5K/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLKHA6WREIVAMBQD7KKWYHPHGGNKMAG6/
https://security.gentoo.org/glsa/202301-02 Third Party Advisory 
https://twistedmatrix.com/trac/ticket/10284 Issue Tracking  Vendor Advisory 
https://www.oracle.com/security-alerts/cpuapr2022.html Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-770 Allocation of Resources Without Limits or Throttling cwe source acceptance level NIST  
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

11 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-21716
NVD Published Date:
03/03/2022
NVD Last Modified:
11/06/2023
Source:
GitHub, Inc.