Bug 1196739 - (CVE-2022-21716) VUL-0: CVE-2022-21716: python-Twisted: server accept an infinite amount of data for the peer's SSH version identifier
(CVE-2022-21716)
VUL-0: CVE-2022-21716: python-Twisted: server accept an infinite amount of da...
Status: IN_PROGRESS
Classification: Novell Products
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents
unspecified
Other Other
: P3 - Medium : Major
: ---
Assigned To: Security Team bot
Security Team bot
https://smash.suse.de/issue/325317/
CVSSv3.1:SUSE:CVE-2022-21716:7.5:(AV:...
:
Depends on:
Blocks:
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Reported: 2022-03-04 08:01 UTC by Alexander Bergmann
Modified: 2022-06-20 13:21 UTC (History)
1 user (show)

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Found By: Security Response Team
Services Priority:
Business Priority:
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Marketing QA Status: ---
IT Deployment: ---


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Description Alexander Bergmann 2022-03-04 08:01:45 UTC
CVE-2022-21716

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.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-21716
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21716
https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9
https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx
http://www.cvedetails.com/cve/CVE-2022-21716/
https://github.com/twisted/twisted/releases/tag/twisted-22.2.0
https://twistedmatrix.com/trac/ticket/10284
Comment 3 Swamp Workflow Management 2022-06-14 13:17:33 UTC
SUSE-SU-2022:2070-1: An update that fixes one vulnerability is now available.

Category: security (important)
Bug References: 1196739
CVE References: CVE-2022-21716
JIRA References: 
Sources used:
openSUSE Leap 15.4 (src):    python-Twisted-19.10.0-150200.3.12.1
openSUSE Leap 15.3 (src):    python-Twisted-19.10.0-150200.3.12.1
SUSE Manager Server 4.1 (src):    python-Twisted-19.10.0-150200.3.12.1
SUSE Manager Retail Branch Server 4.1 (src):    python-Twisted-19.10.0-150200.3.12.1
SUSE Manager Proxy 4.1 (src):    python-Twisted-19.10.0-150200.3.12.1
SUSE Linux Enterprise Server for SAP 15-SP2 (src):    python-Twisted-19.10.0-150200.3.12.1
SUSE Linux Enterprise Server 15-SP2-LTSS (src):    python-Twisted-19.10.0-150200.3.12.1
SUSE Linux Enterprise Server 15-SP2-BCL (src):    python-Twisted-19.10.0-150200.3.12.1
SUSE Linux Enterprise Module for Server Applications 15-SP3 (src):    python-Twisted-19.10.0-150200.3.12.1
SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP3 (src):    python-Twisted-19.10.0-150200.3.12.1
SUSE Linux Enterprise High Performance Computing 15-SP2-LTSS (src):    python-Twisted-19.10.0-150200.3.12.1
SUSE Linux Enterprise High Performance Computing 15-SP2-ESPOS (src):    python-Twisted-19.10.0-150200.3.12.1
SUSE Enterprise Storage 7 (src):    python-Twisted-19.10.0-150200.3.12.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 4 Swamp Workflow Management 2022-06-20 13:21:58 UTC
SUSE-SU-2022:2117-1: An update that fixes one vulnerability is now available.

Category: security (important)
Bug References: 1196739
CVE References: CVE-2022-21716
JIRA References: 
Sources used:
SUSE OpenStack Cloud Crowbar 9 (src):    python-Twisted-15.2.1-9.17.1
SUSE OpenStack Cloud Crowbar 8 (src):    python-Twisted-15.2.1-9.17.1
SUSE OpenStack Cloud 9 (src):    python-Twisted-15.2.1-9.17.1
SUSE OpenStack Cloud 8 (src):    python-Twisted-15.2.1-9.17.1
SUSE Linux Enterprise Module for Web Scripting 12 (src):    python-Twisted-15.2.1-9.17.1
HPE Helion Openstack 8 (src):    python-Twisted-15.2.1-9.17.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.