Upstream information

CVE-2021-20317 at MITRE

Description

A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.

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 4.9
Vector AV:L/AC:L/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 4.4 4.4
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local Local
Attack Complexity Low Low
Privileges Required High High
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1191125 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Liberty Linux 8
  • bpftool >= 4.18.0-348.2.1.el8_5
  • kernel >= 4.18.0-348.2.1.el8_5
  • kernel-abi-stablelists >= 4.18.0-348.2.1.el8_5
  • kernel-core >= 4.18.0-348.2.1.el8_5
  • kernel-cross-headers >= 4.18.0-348.2.1.el8_5
  • kernel-debug >= 4.18.0-348.2.1.el8_5
  • kernel-debug-core >= 4.18.0-348.2.1.el8_5
  • kernel-debug-devel >= 4.18.0-348.2.1.el8_5
  • kernel-debug-modules >= 4.18.0-348.2.1.el8_5
  • kernel-debug-modules-extra >= 4.18.0-348.2.1.el8_5
  • kernel-devel >= 4.18.0-348.2.1.el8_5
  • kernel-doc >= 4.18.0-348.2.1.el8_5
  • kernel-headers >= 4.18.0-348.2.1.el8_5
  • kernel-modules >= 4.18.0-348.2.1.el8_5
  • kernel-modules-extra >= 4.18.0-348.2.1.el8_5
  • kernel-tools >= 4.18.0-348.2.1.el8_5
  • kernel-tools-libs >= 4.18.0-348.2.1.el8_5
  • kernel-tools-libs-devel >= 4.18.0-348.2.1.el8_5
  • perf >= 4.18.0-348.2.1.el8_5
  • python3-perf >= 4.18.0-348.2.1.el8_5
 Patchnames:
RHSA-2021:4647

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Please note that this evaluation state might be work in progress, incomplete or outdated.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 Micro 5.1 kernel-default Already fixed
SUSE Linux Enterprise Micro 5.1 kernel-rt Already fixed
SUSE Linux Enterprise Micro 5.1 kernel-source-rt Already fixed
SUSE Linux Enterprise Micro 5.2 kernel-default Already fixed
SUSE Linux Enterprise Micro 5.2 kernel-rt Already fixed
SUSE Linux Enterprise Micro 5.2 kernel-source-rt Already fixed
SUSE Linux Enterprise Micro 5.3 kernel-default Already fixed
SUSE Linux Enterprise Micro 5.4 kernel-default Already fixed
SUSE Manager Proxy 4.3 kernel-default Already fixed
SUSE Manager Proxy 4.3 kernel-source Already fixed
SUSE Manager Proxy 4.3 kernel-source-azure Already fixed
SUSE Manager Retail Branch Server 4.3 kernel-default Already fixed
SUSE Manager Retail Branch Server 4.3 kernel-source Already fixed
SUSE Manager Retail Branch Server 4.3 kernel-source-azure Already fixed
SUSE Manager Server 4.3 kernel-default Already fixed
SUSE Manager Server 4.3 kernel-source Already fixed
SUSE Manager Server 4.3 kernel-source-azure Already fixed
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Desktop 15 SP4 kernel-default Already fixed
SUSE Linux Enterprise Desktop 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-default Won't fix
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source-azure Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-default Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-source Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-source-azure Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS kernel-default Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-default Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP3 kernel-default Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP3 kernel-source-azure Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4 kernel-default Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4 kernel-source-azure Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-source Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-default Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-source Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP3 kernel-default Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP4 kernel-default Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-default Unsupported
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-source Unsupported
SUSE Linux Enterprise Module for Development Tools 15 SP3 kernel-default Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP4 kernel-default Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise Module for Public Cloud 15 SP4 kernel-source-azure Already fixed
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-source Unsupported
SUSE Linux Enterprise Server 12 SP5 kernel-default Won't fix
SUSE Linux Enterprise Server 12 SP5 kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP5 kernel-source-azure Won't fix
SUSE Linux Enterprise Server 12 SP5-LTSS kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP5-LTSS kernel-source-azure Won't fix
SUSE Linux Enterprise Server 15 SP2 kernel-default Unsupported
SUSE Linux Enterprise Server 15 SP2 kernel-source Unsupported
SUSE Linux Enterprise Server 15 SP2 kernel-source-azure Unsupported
SUSE Linux Enterprise Server 15 SP2-LTSS kernel-default Already fixed
SUSE Linux Enterprise Server 15 SP2-LTSS kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP3 kernel-default Already fixed
SUSE Linux Enterprise Server 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP3 kernel-source-azure Already fixed
SUSE Linux Enterprise Server 15 SP3-LTSS kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP4 kernel-default Already fixed
SUSE Linux Enterprise Server 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP4 kernel-source-azure Already fixed
SUSE Linux Enterprise Server 15 SP4-LTSS kernel-source Already fixed
SUSE Linux Enterprise Server 15-ESPOS kernel-default Won't fix
SUSE Linux Enterprise Server 15-ESPOS kernel-source Won't fix
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 kernel-default Won't fix
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 kernel-source Won't fix
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 kernel-default Already fixed
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 kernel-source Already fixed
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-default Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source-azure Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-default Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-source Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-source-azure Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-default Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-source-azure Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-default Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP4 kernel-source-azure Already fixed
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 kernel-default Won't fix
HPE Helion OpenStack 8 kernel-source Won't fix
HPE Helion OpenStack 8 kernel-source-azure Unsupported
SUSE CaaS Platform 4.0 kernel-default Won't fix
SUSE CaaS Platform 4.0 kernel-source Won't fix
SUSE CaaS Platform 4.5 kernel-default Unsupported
SUSE CaaS Platform 4.5 kernel-source Unsupported
SUSE CaaS Platform Toolchain 3 kernel-source Won't fix
SUSE Enterprise Storage 6 kernel-default Won't fix
SUSE Enterprise Storage 6 kernel-source Won't fix
SUSE Enterprise Storage 6 kernel-source-azure Unsupported
SUSE Enterprise Storage 7 kernel-default Already fixed
SUSE Enterprise Storage 7 kernel-source Already fixed
SUSE Enterprise Storage 7 kernel-source-azure Unsupported
SUSE Enterprise Storage 7.1 kernel-default Already fixed
SUSE Enterprise Storage 7.1 kernel-source Already fixed
SUSE Enterprise Storage 7.1 kernel-source-azure Already fixed
SUSE Linux Enterprise Desktop 11 SP3 kernel-source Unsupported
SUSE Linux Enterprise Desktop 11 SP4 kernel-source Unsupported
SUSE Linux Enterprise Desktop 12 SP2 kernel-source Won't fix
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Won't fix
SUSE Linux Enterprise Desktop 12 SP4 kernel-source Won't fix
SUSE Linux Enterprise Desktop 15 kernel-source Won't fix
SUSE Linux Enterprise Desktop 15 SP1 kernel-source Won't fix
SUSE Linux Enterprise Desktop 15 SP2 kernel-default Unsupported
SUSE Linux Enterprise Desktop 15 SP2 kernel-source Unsupported
SUSE Linux Enterprise Desktop 15 SP3 kernel-default Already fixed
SUSE Linux Enterprise Desktop 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 kernel-source-azure Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP1 kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP1 kernel-source-azure Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-default Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-default Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15-ESPOS kernel-source Won't fix
SUSE Linux Enterprise High Performance Computing 15-LTSS kernel-default Won't fix
SUSE Linux Enterprise High Performance Computing 15-LTSS kernel-source Won't fix
SUSE Linux Enterprise Micro 5.0 kernel-default Won't fix
SUSE Linux Enterprise Module for Basesystem 15 kernel-source Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP1 kernel-source Won't fix
SUSE Linux Enterprise Module for Development Tools 15 kernel-source Won't fix
SUSE Linux Enterprise Module for Development Tools 15 SP1 kernel-source Won't fix
SUSE Linux Enterprise Module for Public Cloud 15 kernel-source-azure Unsupported
SUSE Linux Enterprise Module for Public Cloud 15 SP1 kernel-source-azure Unsupported
SUSE Linux Enterprise Module for Public Cloud 15 SP2 kernel-source-azure Unsupported
SUSE Linux Enterprise Module for Public Cloud 15 SP3 kernel-source-azure Already fixed
SUSE Linux Enterprise Point of Sale 11 SP3 kernel-source Unsupported
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT kernel-source Won't fix
SUSE Linux Enterprise Point of Service 11 SP3 kernel-default Unsupported
SUSE Linux Enterprise Point of Service 11 SP3 kernel-source Unsupported
SUSE Linux Enterprise Real Time 12 SP5 kernel-source-rt Won't fix
SUSE Linux Enterprise Real Time 15 SP2 kernel-default Already fixed
SUSE Linux Enterprise Real Time 15 SP2 kernel-source Already fixed
SUSE Linux Enterprise Real Time 15 SP2 kernel-source-rt Already fixed
SUSE Linux Enterprise Real Time 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise Real Time 15 SP3 kernel-source-rt Already fixed
SUSE Linux Enterprise Real Time 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise Server 11 SP1 kernel-default Unsupported
SUSE Linux Enterprise Server 11 SP1 kernel-source Unsupported
SUSE Linux Enterprise Server 11 SP3 kernel-default Won't fix
SUSE Linux Enterprise Server 11 SP3 kernel-source Won't fix
SUSE Linux Enterprise Server 11 SP3-LTSS kernel-source Unsupported
SUSE Linux Enterprise Server 11 SP4 kernel-source Unsupported
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-default Unsupported
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-source Unsupported
SUSE Linux Enterprise Server 11 SP4-LTSS kernel-default Unsupported
SUSE Linux Enterprise Server 11 SP4-LTSS kernel-source Unsupported
SUSE Linux Enterprise Server 12 SP2 kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP2-BCL kernel-default Won't fix
SUSE Linux Enterprise Server 12 SP2-BCL kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP2-ESPOS kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP2-LTSS kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP3 kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP3 kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP3-BCL kernel-default Won't fix
SUSE Linux Enterprise Server 12 SP3-BCL kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP3-BCL kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-default Won't fix
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-default Won't fix
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP4 kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP4 kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-default Won't fix
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-default Won't fix
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-source Won't fix
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-source-azure Unsupported
SUSE Linux Enterprise Server 15 kernel-source Won't fix
SUSE Linux Enterprise Server 15 kernel-source-azure Unsupported
SUSE Linux Enterprise Server 15 SP1 kernel-source Won't fix
SUSE Linux Enterprise Server 15 SP1 kernel-source-azure Unsupported
SUSE Linux Enterprise Server 15 SP1-BCL kernel-source Won't fix
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-default Won't fix
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-source Won't fix
SUSE Linux Enterprise Server 15 SP2-BCL kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP3-BCL kernel-source Already fixed
SUSE Linux Enterprise Server 15-LTSS kernel-default Won't fix
SUSE Linux Enterprise Server 15-LTSS kernel-source Won't fix
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-default Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source-azure Unsupported
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-default Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source-azure Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 kernel-default Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 kernel-source-azure Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-default Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-source Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-source-azure Unsupported
SUSE Manager Proxy 4.0 kernel-source Won't fix
SUSE Manager Proxy 4.0 kernel-source-azure Unsupported
SUSE Manager Proxy 4.1 kernel-default Already fixed
SUSE Manager Proxy 4.1 kernel-source Already fixed
SUSE Manager Proxy 4.1 kernel-source-azure Unsupported
SUSE Manager Proxy 4.2 kernel-default Already fixed
SUSE Manager Proxy 4.2 kernel-source Already fixed
SUSE Manager Proxy 4.2 kernel-source-azure Already fixed
SUSE Manager Retail Branch Server 4.0 kernel-source Won't fix
SUSE Manager Retail Branch Server 4.0 kernel-source-azure Unsupported
SUSE Manager Retail Branch Server 4.1 kernel-default Already fixed
SUSE Manager Retail Branch Server 4.1 kernel-source Already fixed
SUSE Manager Retail Branch Server 4.1 kernel-source-azure Unsupported
SUSE Manager Retail Branch Server 4.2 kernel-default Already fixed
SUSE Manager Retail Branch Server 4.2 kernel-source Already fixed
SUSE Manager Retail Branch Server 4.2 kernel-source-azure Already fixed
SUSE Manager Server 4.0 kernel-source Won't fix
SUSE Manager Server 4.0 kernel-source-azure Unsupported
SUSE Manager Server 4.1 kernel-default Already fixed
SUSE Manager Server 4.1 kernel-source Already fixed
SUSE Manager Server 4.1 kernel-source-azure Unsupported
SUSE Manager Server 4.2 kernel-default Already fixed
SUSE Manager Server 4.2 kernel-source Already fixed
SUSE Manager Server 4.2 kernel-source-azure Already fixed
SUSE OpenStack Cloud 7 kernel-source Won't fix
SUSE OpenStack Cloud 8 kernel-default Won't fix
SUSE OpenStack Cloud 8 kernel-source Won't fix
SUSE OpenStack Cloud 8 kernel-source-azure Unsupported
SUSE OpenStack Cloud 9 kernel-default Won't fix
SUSE OpenStack Cloud 9 kernel-source Won't fix
SUSE OpenStack Cloud 9 kernel-source-azure Unsupported
SUSE OpenStack Cloud Crowbar 8 kernel-default Won't fix
SUSE OpenStack Cloud Crowbar 8 kernel-source Won't fix
SUSE OpenStack Cloud Crowbar 8 kernel-source-azure Unsupported
SUSE OpenStack Cloud Crowbar 9 kernel-default Won't fix
SUSE OpenStack Cloud Crowbar 9 kernel-source Won't fix
SUSE OpenStack Cloud Crowbar 9 kernel-source-azure Unsupported
SUSE Real Time Module 15 SP2 kernel-source-rt Already fixed
SUSE Real Time Module 15 SP3 kernel-source-rt Already fixed
openSUSE Leap 15.3 kernel-source Already fixed
openSUSE Leap 15.3 kernel-source-azure Already fixed
openSUSE Leap 15.3 kernel-source-rt Already fixed
openSUSE Leap 15.4 kernel-source Already fixed
openSUSE Leap 15.4 kernel-source-azure Already fixed
Products at an unknown state of their lifecycle.
SUSE Linux Enterprise Server LTSS Extended Security 12-SP5 kernel-source Won't fix
SUSE Linux Enterprise Server LTSS Extended Security 12-SP5 kernel-source-azure Won't fix

SUSE Timeline for this CVE

CVE page created: Thu Sep 23 22:00:42 2021
CVE page last modified: Tue Nov 12 19:29:52 2024