Upstream information

CVE-2021-34557 at MITRE

Description

XScreenSaver 5.45 can be bypassed if the machine has more than ten disconnectable video outputs. A buffer overflow in update_screen_layout() allows an attacker to bypass the standard screen lock authentication mechanism by crashing XScreenSaver. The attacker must physically disconnect many video outputs.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 2.1
Vector AV:L/AC:L/Au:N/C:N/I:N/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 4.6 6.4
Vector CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Physical Physical
Attack Complexity Low High
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None High
Integrity Impact None High
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1186918 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Enterprise Storage 7.1
SUSE Linux Enterprise Desktop 15 SP3
SUSE Linux Enterprise High Performance Computing 15 SP3
SUSE Linux Enterprise Module for Basesystem 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
  • xscreensaver >= 5.44-150000.5.6.1
  • xscreensaver-data >= 5.44-150000.5.6.1
  • xscreensaver-lang >= 5.44-150000.5.6.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP3-2022-2641
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • xscreensaver >= 5.22-8.3.1
  • xscreensaver-data >= 5.22-8.3.1
Patchnames:
SUSE-SLE-SERVER-12-SP5-2022-2642
openSUSE Leap 15.3
  • xscreensaver >= 5.44-150000.5.6.1
  • xscreensaver-data >= 5.44-150000.5.6.1
  • xscreensaver-data-extra >= 5.44-150000.5.6.1
  • xscreensaver-lang >= 5.44-150000.5.6.1
Patchnames:
openSUSE-SLE-15.3-2022-2641


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Please note that this evaluation state might be work in progress, incomplete or outdated.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 Enterprise Storage 7.1 xscreensaver Released
SUSE Linux Enterprise Desktop 15 SP5 xscreensaver Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 xscreensaver Released
SUSE Linux Enterprise High Performance Computing 15 SP5 xscreensaver Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP5 xscreensaver Not affected
SUSE Linux Enterprise Real Time 15 SP3 xscreensaver Affected
SUSE Linux Enterprise Server 12 SP5 xscreensaver Released
SUSE Linux Enterprise Server 12-LTSS xscreensaver Affected
SUSE Linux Enterprise Server 15 SP5 xscreensaver Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 xscreensaver Released
SUSE Linux Enterprise Server for SAP Applications 15 SP4 xscreensaver Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 xscreensaver Not affected
SUSE Manager Proxy 4.3 xscreensaver Not affected
SUSE Manager Retail Branch Server 4.3 xscreensaver Not affected
SUSE Manager Server 4.3 xscreensaver Not affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Desktop 15 SP4 xscreensaver Not affected
SUSE Linux Enterprise High Performance Computing 15 xscreensaver Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 xscreensaver Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS xscreensaver Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS xscreensaver Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 xscreensaver Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS xscreensaver Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS xscreensaver Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 xscreensaver Released
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS xscreensaver Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS xscreensaver Affected
SUSE Linux Enterprise High Performance Computing 15 SP4 xscreensaver Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS xscreensaver Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS xscreensaver Not affected
SUSE Linux Enterprise High Performance Computing 15-ESPOS xscreensaver Affected
SUSE Linux Enterprise High Performance Computing 15-LTSS xscreensaver Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP2 xscreensaver Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP3 xscreensaver Released
SUSE Linux Enterprise Module for Basesystem 15 SP4 xscreensaver Not affected
SUSE Linux Enterprise Server 12 SP2-BCL xscreensaver Affected
SUSE Linux Enterprise Server 15 SP2 xscreensaver Unsupported
SUSE Linux Enterprise Server 15 SP2-LTSS xscreensaver Affected
SUSE Linux Enterprise Server 15 SP3 xscreensaver Released
SUSE Linux Enterprise Server 15 SP3-LTSS xscreensaver Affected
SUSE Linux Enterprise Server 15 SP4 xscreensaver Not affected
SUSE Linux Enterprise Server 15 SP4-LTSS xscreensaver Not affected
SUSE Linux Enterprise Server 15-ESPOS xscreensaver Unsupported
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 xscreensaver Unsupported
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 xscreensaver Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 xscreensaver Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP1 xscreensaver Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 xscreensaver Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP3 xscreensaver Released
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 xscreensaver Affected
SUSE CaaS Platform 4.0 xscreensaver Affected
SUSE CaaS Platform 4.5 xscreensaver Unsupported
SUSE Enterprise Storage 6 xscreensaver Affected
SUSE Enterprise Storage 7 xscreensaver Affected
SUSE Linux Enterprise Desktop 12 xscreensaver Affected
SUSE Linux Enterprise Desktop 12 SP1 xscreensaver Affected
SUSE Linux Enterprise Desktop 12 SP2 xscreensaver Affected
SUSE Linux Enterprise Desktop 12 SP3 xscreensaver Affected
SUSE Linux Enterprise Desktop 12 SP4 xscreensaver Affected
SUSE Linux Enterprise Desktop 15 xscreensaver Affected
SUSE Linux Enterprise Desktop 15 SP1 xscreensaver Affected
SUSE Linux Enterprise Desktop 15 SP2 xscreensaver Unsupported
SUSE Linux Enterprise Desktop 15 SP3 xscreensaver Released
SUSE Linux Enterprise Module for Basesystem 15 xscreensaver Affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 xscreensaver Affected
SUSE Linux Enterprise Point of Service 11 SP3 xscreensaver Unsupported
SUSE Linux Enterprise Real Time 15 SP2 xscreensaver Unsupported
SUSE Linux Enterprise Real Time 15 SP4 xscreensaver Not affected
SUSE Linux Enterprise Server 11 SP1 xscreensaver Unsupported
SUSE Linux Enterprise Server 11 SP3 xscreensaver Unsupported
SUSE Linux Enterprise Server 11 SP3-LTSS xscreensaver Affected
SUSE Linux Enterprise Server 11 SP4 xscreensaver Affected
SUSE Linux Enterprise Server 11 SP4 LTSS xscreensaver Affected
SUSE Linux Enterprise Server 11 SP4-LTSS xscreensaver Unsupported
SUSE Linux Enterprise Server 12 xscreensaver Affected
SUSE Linux Enterprise Server 12 SP1 xscreensaver Affected
SUSE Linux Enterprise Server 12 SP1-LTSS xscreensaver Affected
SUSE Linux Enterprise Server 12 SP2 xscreensaver Affected
SUSE Linux Enterprise Server 12 SP2-ESPOS xscreensaver Affected
SUSE Linux Enterprise Server 12 SP2-LTSS xscreensaver Affected
SUSE Linux Enterprise Server 12 SP3 xscreensaver Affected
SUSE Linux Enterprise Server 12 SP3-BCL xscreensaver Unsupported
SUSE Linux Enterprise Server 12 SP3-ESPOS xscreensaver Unsupported
SUSE Linux Enterprise Server 12 SP3-LTSS xscreensaver Unsupported
SUSE Linux Enterprise Server 12 SP4 xscreensaver Affected
SUSE Linux Enterprise Server 12 SP4-ESPOS xscreensaver Affected
SUSE Linux Enterprise Server 12 SP4-LTSS xscreensaver Affected
SUSE Linux Enterprise Server 15 xscreensaver Affected
SUSE Linux Enterprise Server 15 SP1 xscreensaver Affected
SUSE Linux Enterprise Server 15 SP1-BCL xscreensaver Affected
SUSE Linux Enterprise Server 15 SP1-LTSS xscreensaver Affected
SUSE Linux Enterprise Server 15 SP2-BCL xscreensaver Affected
SUSE Linux Enterprise Server 15 SP3-BCL xscreensaver Affected
SUSE Linux Enterprise Server 15-LTSS xscreensaver Unsupported
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 xscreensaver Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP1 xscreensaver Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 xscreensaver Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 xscreensaver Unsupported
SUSE Linux Enterprise Server for SAP Applications 12 SP4 xscreensaver Affected
SUSE Manager Proxy 4.0 xscreensaver Unsupported
SUSE Manager Proxy 4.1 xscreensaver Unsupported
SUSE Manager Proxy 4.2 xscreensaver Released
SUSE Manager Retail Branch Server 4.0 xscreensaver Unsupported
SUSE Manager Retail Branch Server 4.1 xscreensaver Unsupported
SUSE Manager Retail Branch Server 4.2 xscreensaver Released
SUSE Manager Server 4.0 xscreensaver Unsupported
SUSE Manager Server 4.1 xscreensaver Unsupported
SUSE Manager Server 4.2 xscreensaver Released
SUSE OpenStack Cloud 7 xscreensaver Affected
SUSE OpenStack Cloud 8 xscreensaver Affected
SUSE OpenStack Cloud 9 xscreensaver Affected
SUSE OpenStack Cloud Crowbar 8 xscreensaver Affected
SUSE OpenStack Cloud Crowbar 9 xscreensaver Affected
Products at an unknown state of their lifecycle.
SUSE Linux Enterprise Desktop 15 SP4-LTSS xscreensaver Not affected


SUSE Timeline for this CVE

CVE page created: Mon Jun 7 09:55:35 2021
CVE page last modified: Thu Feb 1 01:40:43 2024