Upstream information

CVE-2022-21716 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  CNA (GitHub) National Vulnerability Database SUSE
Base Score 7.5 7.5 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network Network Network
Attack Complexity Low Low Low
Privileges Required None None None
User Interaction None None None
Scope Unchanged Unchanged Unchanged
Confidentiality Impact None None None
Integrity Impact None None None
Availability Impact High High High
CVSSv3 Version 3.1 3.1 3.1
SUSE Bugzilla entry: 1196739 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
HPE Helion OpenStack 8
  • python-Twisted >= 15.2.1-9.17.1
 Patchnames:
HPE-Helion-OpenStack-8-2022-2117
Image SLES15-SP3-BYOS-Azure
Image SLES15-SP3-HPC-BYOS-Azure
Image SLES15-SP3-SAP-BYOS-Azure
Image SLES15-SP3-SAPCAL-Azure
  • python3-Twisted >= 19.10.0-150200.3.12.1
SUSE Enterprise Storage 7.1
SUSE Linux Enterprise High Performance Computing 15 SP3
SUSE Linux Enterprise Module for Server Applications 15 SP3
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server for SAP Applications 15 SP3
SUSE Manager Proxy 4.2
SUSE Manager Retail Branch Server 4.2
SUSE Manager Server 4.2
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP3-2022-2070
SUSE Enterprise Storage 7
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
SUSE-Storage-7-2022-2070
SUSE Linux Enterprise Desktop 15 SP6
SUSE Linux Enterprise Module for Python 3 15 SP6
  • python311-Twisted >= 22.10.0-150400.5.13.1
  • python311-Twisted-all_non_platform >= 22.10.0-150400.5.13.1
  • python311-Twisted-conch >= 22.10.0-150400.5.13.1
  • python311-Twisted-conch_nacl >= 22.10.0-150400.5.13.1
  • python311-Twisted-contextvars >= 22.10.0-150400.5.13.1
  • python311-Twisted-http2 >= 22.10.0-150400.5.13.1
  • python311-Twisted-serial >= 22.10.0-150400.5.13.1
  • python311-Twisted-tls >= 22.10.0-150400.5.13.1
 Patchnames:
SUSE Linux Enterprise Module for Python 3 15 SP6 GA python311-Twisted-22.10.0-150400.5.13.1
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Module for Web and Scripting 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server 12 SP3
SUSE Linux Enterprise Server 12 SP4
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server for SAP Applications 12 SP3
SUSE Linux Enterprise Server for SAP Applications 12 SP4
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • python-Twisted >= 15.2.1-9.17.1
 Patchnames:
SUSE-SLE-Module-Web-Scripting-12-2022-2117
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP2-ESPOS-2022-2070
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP2-LTSS-2022-2070
SUSE Linux Enterprise High Performance Computing 15 SP4
SUSE Linux Enterprise Module for Server Applications 15 SP4
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15 SP4
SUSE Manager Proxy 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
  • python3-Twisted >= 22.2.0-150400.5.4.1
 Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP4-2022-2297
SUSE Linux Enterprise High Performance Computing 15 SP5
SUSE Linux Enterprise Module for Server Applications 15 SP5
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • python3-Twisted >= 22.2.0-150400.5.4.1
 Patchnames:
SUSE Linux Enterprise Module for Server Applications 15 SP5 GA python-Twisted-22.2.0-150400.5.7.1
SUSE Linux Enterprise High Performance Computing 15 SP6
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • python3-Twisted >= 22.2.0-150400.5.4.1
  • python311-Twisted >= 22.10.0-150400.5.13.1
  • python311-Twisted-all_non_platform >= 22.10.0-150400.5.13.1
  • python311-Twisted-conch >= 22.10.0-150400.5.13.1
  • python311-Twisted-conch_nacl >= 22.10.0-150400.5.13.1
  • python311-Twisted-contextvars >= 22.10.0-150400.5.13.1
  • python311-Twisted-http2 >= 22.10.0-150400.5.13.1
  • python311-Twisted-serial >= 22.10.0-150400.5.13.1
  • python311-Twisted-tls >= 22.10.0-150400.5.13.1
 Patchnames:
SUSE Linux Enterprise Module for Python 3 15 SP6 GA python311-Twisted-22.10.0-150400.5.13.1
SUSE Linux Enterprise Module for Server Applications 15 SP6 GA python3-Twisted-22.2.0-150400.15.1
SUSE Linux Enterprise Module for Package Hub 15 SP3
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
SUSE-SLE-Module-Packagehub-Subpackages-15-SP3-2022-2070
SUSE Linux Enterprise Module for Server Applications 15 SP6
  • python3-Twisted >= 22.2.0-150400.5.4.1
 Patchnames:
SUSE Linux Enterprise Module for Server Applications 15 SP6 GA python3-Twisted-22.2.0-150400.15.1
SUSE Linux Enterprise Server 15 SP2-BCL
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP2-BCL-2022-2070
SUSE Linux Enterprise Server 15 SP2-LTSS
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP2-LTSS-2022-2070
SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP2-2022-2070
SUSE Manager Proxy 4.1
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Proxy-4.1-2022-2070
SUSE Manager Retail Branch Server 4.1
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.1-2022-2070
SUSE Manager Server 4.1
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Server-4.1-2022-2070
SUSE OpenStack Cloud 8
  • python-Twisted >= 15.2.1-9.17.1
 Patchnames:
SUSE-OpenStack-Cloud-8-2022-2117
SUSE OpenStack Cloud 9
  • python-Twisted >= 15.2.1-9.17.1
 Patchnames:
SUSE-OpenStack-Cloud-9-2022-2117
SUSE OpenStack Cloud Crowbar 8
  • python-Twisted >= 15.2.1-9.17.1
 Patchnames:
SUSE-OpenStack-Cloud-Crowbar-8-2022-2117
SUSE OpenStack Cloud Crowbar 9
  • python-Twisted >= 15.2.1-9.17.1
 Patchnames:
SUSE-OpenStack-Cloud-Crowbar-9-2022-2117
openSUSE Leap 15.3
  • python-Twisted-doc >= 19.10.0-150200.3.12.1
  • python2-Twisted >= 19.10.0-150200.3.12.1
  • python3-Twisted >= 19.10.0-150200.3.12.1
 Patchnames:
openSUSE-SLE-15.3-2022-2070
openSUSE Leap 15.4
  • python-Twisted-doc >= 22.2.0-150400.5.4.1
  • python3-Twisted >= 22.2.0-150400.5.4.1
 Patchnames:
openSUSE-SLE-15.4-2022-2070
openSUSE-SLE-15.4-2022-2297
openSUSE Tumbleweed
  • python-Twisted-doc >= 22.2.0-1.1
  • python310-Twisted >= 22.2.0-1.1
  • python38-Twisted >= 22.2.0-1.1
  • python39-Twisted >= 22.2.0-1.1
 Patchnames:
openSUSE-Tumbleweed-2024-11978

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP5 python-Twisted Affected
SUSE Linux Enterprise Desktop 15 SP6 python-Twisted Affected
SUSE Linux Enterprise High Performance Computing 12 python-Twisted Released
SUSE Linux Enterprise High Performance Computing 15 SP5 python-Twisted Released
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS python-Twisted Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS python-Twisted Released
SUSE Linux Enterprise High Performance Computing 15 SP6 python-Twisted Affected
SUSE Linux Enterprise High Performance Computing 15 SP6 python3-Twisted Released
SUSE Linux Enterprise Module for Python 3 15 SP5 python-Twisted Affected
SUSE Linux Enterprise Module for Python 3 15 SP6 python-Twisted Affected
SUSE Linux Enterprise Module for Server Applications 15 SP5 python-Twisted Released
SUSE Linux Enterprise Module for Server Applications 15 SP6 python3-Twisted Released
SUSE Linux Enterprise Server 15 SP5 python-Twisted Released
SUSE Linux Enterprise Server 15 SP5-LTSS python-Twisted Released
SUSE Linux Enterprise Server 15 SP6 python-Twisted Affected
SUSE Linux Enterprise Server 15 SP6 python3-Twisted Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 python-Twisted Released
SUSE Linux Enterprise Server for SAP Applications 15 SP6 python-Twisted Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 python3-Twisted Released
SUSE Manager Proxy 4.3 python-Twisted Released
SUSE Manager Retail Branch Server 4.3 python-Twisted Released
SUSE Manager Server 4.3 python-Twisted Released
openSUSE Leap 15.5 python-Twisted Affected
openSUSE Leap 15.6 python-Twisted Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Desktop 15 SP4 python-Twisted Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 python-Twisted Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS python-Twisted Released
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS python-Twisted Released
SUSE Linux Enterprise High Performance Computing 15 SP3 python-Twisted Released
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS python-Twisted Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS python-Twisted Released
SUSE Linux Enterprise High Performance Computing 15 SP4 python-Twisted Released
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS python-Twisted Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS python-Twisted Released
SUSE Linux Enterprise Module for Public Cloud 15 SP4 python-Twisted Affected
SUSE Linux Enterprise Module for Python 3 15 SP4 python-Twisted Affected
SUSE Linux Enterprise Module for Server Applications 15 SP2 python-Twisted Affected
SUSE Linux Enterprise Module for Server Applications 15 SP3 python-Twisted Released
SUSE Linux Enterprise Module for Server Applications 15 SP4 python-Twisted Released
SUSE Linux Enterprise Server 12 SP5 python-Twisted Released
SUSE Linux Enterprise Server 15 SP2 python-Twisted Affected
SUSE Linux Enterprise Server 15 SP2-LTSS python-Twisted Released
SUSE Linux Enterprise Server 15 SP3 python-Twisted Released
SUSE Linux Enterprise Server 15 SP3-LTSS python-Twisted Released
SUSE Linux Enterprise Server 15 SP4 python-Twisted Released
SUSE Linux Enterprise Server 15 SP4-LTSS python-Twisted Released
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 python-Twisted Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 python-Twisted Released
SUSE Linux Enterprise Server for SAP Applications 15 SP2 python-Twisted Released
SUSE Linux Enterprise Server for SAP Applications 15 SP3 python-Twisted Released
SUSE Linux Enterprise Server for SAP Applications 15 SP4 python-Twisted Released
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 python-Twisted Released
SUSE Enterprise Storage 1.0 python-Twisted Affected
SUSE Enterprise Storage 2 python-Twisted Affected
SUSE Enterprise Storage 3 python-Twisted Affected
SUSE Enterprise Storage 4 python-Twisted Affected
SUSE Enterprise Storage 5 python-Twisted Affected
SUSE Enterprise Storage 7 python-Twisted Released
SUSE Enterprise Storage 7.1 python-Twisted Released
SUSE Linux Enterprise Module for Package Hub 15 SP3 python-Twisted Released
SUSE Linux Enterprise Module for Web and Scripting 12 python-Twisted Released
SUSE Linux Enterprise Real Time 15 SP2 python-Twisted Unsupported
SUSE Linux Enterprise Real Time 15 SP3 python-Twisted Affected
SUSE Linux Enterprise Server 12 python-Twisted Released
SUSE Linux Enterprise Server 12 SP3 python-Twisted Released
SUSE Linux Enterprise Server 12 SP4 python-Twisted Released
SUSE Linux Enterprise Server 15 SP2-BCL python-Twisted Released
SUSE Linux Enterprise Server 15 SP3-BCL python-Twisted Affected
SUSE Linux Enterprise Server for SAP Applications 12 python-Twisted Released
SUSE Linux Enterprise Server for SAP Applications 12 SP3 python-Twisted Released
SUSE Linux Enterprise Server for SAP Applications 12 SP4 python-Twisted Released
SUSE Manager Proxy 4.1 python-Twisted Released
SUSE Manager Proxy 4.2 python-Twisted Released
SUSE Manager Retail Branch Server 4.1 python-Twisted Released
SUSE Manager Retail Branch Server 4.2 python-Twisted Released
SUSE Manager Server 4.1 python-Twisted Released
SUSE Manager Server 4.2 python-Twisted Released
SUSE OpenStack Cloud 7 python-Twisted Affected
SUSE OpenStack Cloud 8 python-Twisted Released
SUSE OpenStack Cloud 9 python-Twisted Released
SUSE OpenStack Cloud Crowbar 8 python-Twisted Released
SUSE OpenStack Cloud Crowbar 9 python-Twisted Released
openSUSE Leap 15.3 python-Twisted Affected
openSUSE Leap 15.4 python-Twisted Affected

SUSE Timeline for this CVE

CVE page created: Fri Mar 4 01:00:36 2022
CVE page last modified: Sat Dec 21 00:04:54 2024