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CVE-2022-21716

Buffer Overflow in Twisted

Published: Mar 3, 2022Updated: Nov 25, 2024 Sources: CVE List NVD GHSA BDUCWE-120
7.5HIGH
NVD MITRE
EPSS Score
3.5%
Top 11.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-120CWE-770

Affected Products

oracle
commercial·USaka oracle corp.
http serverOn-premWeb App
Web & CMS Plugins
zfs storage appliance kitOn-premDatabase
Databases / data-warehouse-analytics
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Astra Linux Special Edition для «Эльбрус»On-premOS
Operating Systems / linux-distro
twisted
oss-projectaka twisted python
twistedLibrary
OSS Libraries / pypi
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
PyPI
package-ecosystem
twisted
OSS Libraries
and 5 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

3 techniques
Impact
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9
github.com
https://github.com/twisted/twisted/releases/tag/twisted-22.2.0
github.com
https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx
github.com
and 23 more references View all →

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