Upstream information

CVE-2021-47248 at MITRE

Description

In the Linux kernel, the following vulnerability has been resolved:

udp: fix race between close() and udp_abort()

Kaustubh reported and diagnosed a panic in udp_lib_lookup().
The root cause is udp_abort() racing with close(). Both
racing functions acquire the socket lock, but udp{v6}_destroy_sock()
release it before performing destructive actions.

We can't easily extend the socket lock scope to avoid the race,
instead use the SOCK_DEAD flag to prevent udp_abort from doing
any action when the critical race happens.

Diagnosed-and-tested-by: Kaustubh Pandey <kapandey@codeaurora.org>

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v3 Scores
  SUSE
Base Score 4.7
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1

Note from the SUSE Security Team on the kernel-default package

SUSE will no longer fix all CVEs in the Linux Kernel anymore, but declare some bug classes as won't fix. Please refer to TID 21496 for more details.

SUSE Bugzilla entry: 1224867 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Image SLES12-SP5-Azure-BYOS
Image SLES12-SP5-Azure-HPC-BYOS
Image SLES12-SP5-EC2-BYOS
Image SLES12-SP5-EC2-ECS-On-Demand
Image SLES12-SP5-EC2-On-Demand
Image SLES12-SP5-GCE-BYOS
Image SLES12-SP5-GCE-On-Demand
  • kernel-default >= 4.12.14-122.219.1
Image SLES12-SP5-Azure-Basic-On-Demand
Image SLES12-SP5-Azure-HPC-On-Demand
Image SLES12-SP5-Azure-Standard-On-Demand
  • kernel-azure >= 4.12.14-16.188.1
Image SLES12-SP5-Azure-SAP-BYOS
Image SLES12-SP5-Azure-SAP-On-Demand
Image SLES12-SP5-EC2-SAP-BYOS
Image SLES12-SP5-EC2-SAP-On-Demand
Image SLES12-SP5-GCE-SAP-BYOS
Image SLES12-SP5-GCE-SAP-On-Demand
Image SLES12-SP5-SAP-Azure-LI-BYOS-Production
Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production
  • cluster-md-kmp-default >= 4.12.14-122.219.1
  • dlm-kmp-default >= 4.12.14-122.219.1
  • gfs2-kmp-default >= 4.12.14-122.219.1
  • kernel-default >= 4.12.14-122.219.1
  • ocfs2-kmp-default >= 4.12.14-122.219.1
SUSE Linux Enterprise High Availability Extension 12 SP5
  • cluster-md-kmp-default >= 4.12.14-122.219.1
  • dlm-kmp-default >= 4.12.14-122.219.1
  • gfs2-kmp-default >= 4.12.14-122.219.1
  • ocfs2-kmp-default >= 4.12.14-122.219.1
 Patchnames:
SUSE-SLE-HA-12-SP5-2024-2184
SUSE Linux Enterprise Live Patching 12 SP5
  • kernel-default-kgraft >= 4.12.14-122.219.1
  • kernel-default-kgraft-devel >= 4.12.14-122.219.1
 Patchnames:
SUSE-SLE-Live-Patching-12-SP5-2024-2184
SUSE Linux Enterprise Real Time 12 SP5
  • cluster-md-kmp-rt >= 4.12.14-10.188.1
  • dlm-kmp-rt >= 4.12.14-10.188.1
  • gfs2-kmp-rt >= 4.12.14-10.188.1
  • kernel-devel-rt >= 4.12.14-10.188.1
  • kernel-rt >= 4.12.14-10.188.1
  • kernel-rt-base >= 4.12.14-10.188.1
  • kernel-rt-devel >= 4.12.14-10.188.1
  • kernel-rt_debug >= 4.12.14-10.188.1
  • kernel-rt_debug-devel >= 4.12.14-10.188.1
  • kernel-source-rt >= 4.12.14-10.188.1
  • kernel-syms-rt >= 4.12.14-10.188.1
  • ocfs2-kmp-rt >= 4.12.14-10.188.1
 Patchnames:
SUSE-SLE-RT-12-SP5-2024-1983
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • kernel-azure >= 4.12.14-16.188.1
  • kernel-azure-base >= 4.12.14-16.188.1
  • kernel-azure-devel >= 4.12.14-16.188.1
  • kernel-default >= 4.12.14-122.219.1
  • kernel-default-base >= 4.12.14-122.219.1
  • kernel-default-devel >= 4.12.14-122.219.1
  • kernel-default-extra >= 4.12.14-122.219.1
  • kernel-default-man >= 4.12.14-122.219.1
  • kernel-devel >= 4.12.14-122.219.1
  • kernel-devel-azure >= 4.12.14-16.188.1
  • kernel-docs >= 4.12.14-122.219.1
  • kernel-macros >= 4.12.14-122.219.1
  • kernel-obs-build >= 4.12.14-122.219.1
  • kernel-source >= 4.12.14-122.219.1
  • kernel-source-azure >= 4.12.14-16.188.1
  • kernel-syms >= 4.12.14-122.219.1
  • kernel-syms-azure >= 4.12.14-16.188.1
 Patchnames:
SUSE-SLE-SDK-12-SP5-2024-2184
SUSE-SLE-SERVER-12-SP5-2024-1979
SUSE-SLE-SERVER-12-SP5-2024-2184
SUSE-SLE-WE-12-SP5-2024-2184
SUSE Linux Enterprise Software Development Kit 12 SP5
  • kernel-docs >= 4.12.14-122.219.1
  • kernel-obs-build >= 4.12.14-122.219.1
 Patchnames:
SUSE-SLE-SDK-12-SP5-2024-2184
SUSE Linux Enterprise Workstation Extension 12 SP5
  • kernel-default-extra >= 4.12.14-122.219.1
 Patchnames:
SUSE-SLE-WE-12-SP5-2024-2184

First public cloud image revisions this CVE is fixed in:

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 kernel-default Already fixed
SUSE Linux Enterprise Desktop 15 SP5 kernel-source Already fixed
SUSE Linux Enterprise Desktop 15 SP6 kernel-default Already fixed
SUSE Linux Enterprise Desktop 15 SP6 kernel-source Already fixed
SUSE Linux Enterprise High Availability Extension 12 SP5 kernel-default Released
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-default Released
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source Released
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source-azure Released
SUSE Linux Enterprise High Performance Computing 15 SP5 kernel-default Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP5 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP5 kernel-source-azure Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP6 kernel-default Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP6 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP6 kernel-source-azure Already fixed
SUSE Linux Enterprise Live Patching 12 SP5 kernel-default Released
SUSE Linux Enterprise Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_57 Released
SUSE Linux Enterprise Micro 5.1 kernel-default Affected
SUSE Linux Enterprise Micro 5.1 kernel-rt Unsupported
SUSE Linux Enterprise Micro 5.1 kernel-source-rt Unsupported
SUSE Linux Enterprise Micro 5.2 kernel-default Affected
SUSE Linux Enterprise Micro 5.2 kernel-rt Unsupported
SUSE Linux Enterprise Micro 5.2 kernel-source-rt Unsupported
SUSE Linux Enterprise Micro 5.3 kernel-default Already fixed
SUSE Linux Enterprise Micro 5.3 kernel-rt Already fixed
SUSE Linux Enterprise Micro 5.3 kernel-source-rt Already fixed
SUSE Linux Enterprise Micro 5.4 kernel-default Already fixed
SUSE Linux Enterprise Micro 5.4 kernel-rt Already fixed
SUSE Linux Enterprise Micro 5.4 kernel-source-rt Already fixed
SUSE Linux Enterprise Micro 5.5 kernel-source-rt Already fixed
SUSE Linux Enterprise Micro 6.0 kernel-source Already fixed
SUSE Linux Enterprise Micro 6.0 kernel-source-rt Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP5 kernel-default Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP5 kernel-source Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP6 kernel-default Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP6 kernel-source Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP5 kernel-default Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP5 kernel-source Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP6 kernel-default Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP6 kernel-source Already fixed
SUSE Linux Enterprise Module for Public Cloud 15 SP5 kernel-source-azure Already fixed
SUSE Linux Enterprise Module for Public Cloud 15 SP6 kernel-source-azure Already fixed
SUSE Linux Enterprise Real Time 12 SP5 kernel-rt Released
SUSE Linux Enterprise Real Time 12 SP5 kernel-rt_debug Released
SUSE Linux Enterprise Real Time 12 SP5 kernel-source-rt Released
SUSE Linux Enterprise Real Time 12 SP5 kernel-syms-rt Released
SUSE Linux Enterprise Real Time 15 SP5 kernel-source-rt Already fixed
SUSE Linux Enterprise Real Time 15 SP6 kernel-source-rt Already fixed
SUSE Linux Enterprise Server 12 SP5 kernel-azure Released
SUSE Linux Enterprise Server 12 SP5 kernel-default Released
SUSE Linux Enterprise Server 12 SP5 kernel-docs Released
SUSE Linux Enterprise Server 12 SP5 kernel-obs-build Released
SUSE Linux Enterprise Server 12 SP5 kernel-source Released
SUSE Linux Enterprise Server 12 SP5 kernel-source-azure Released
SUSE Linux Enterprise Server 12 SP5 kernel-syms Released
SUSE Linux Enterprise Server 12 SP5 kernel-syms-azure Released
SUSE Linux Enterprise Server 12 SP5-LTSS kernel-source Affected
SUSE Linux Enterprise Server 12 SP5-LTSS kernel-source-azure Affected
SUSE Linux Enterprise Server 15 SP5 kernel-default Already fixed
SUSE Linux Enterprise Server 15 SP5 kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP5 kernel-source-azure Already fixed
SUSE Linux Enterprise Server 15 SP6 kernel-default Already fixed
SUSE Linux Enterprise Server 15 SP6 kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP6 kernel-source-azure Already fixed
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-azure Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-default Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-docs Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-obs-build Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source-azure Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-syms Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-syms-azure Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 kernel-default Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP5 kernel-source Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP5 kernel-source-azure Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kernel-default Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kernel-source Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP6 kernel-source-azure Already fixed
SUSE Linux Enterprise Software Development Kit 12 SP5 kernel-docs Released
SUSE Linux Enterprise Software Development Kit 12 SP5 kernel-obs-build Released
SUSE Linux Enterprise Workstation Extension 12 SP5 kernel-default Released
SUSE Manager Proxy 4.3 kernel-default Already fixed
SUSE Manager Proxy 4.3 kernel-source 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 Server 4.3 kernel-default Already fixed
SUSE Manager Server 4.3 kernel-source Already fixed
SUSE Real Time Module 15 SP5 kernel-source-rt Already fixed
SUSE Real Time Module 15 SP6 kernel-source-rt Already fixed
openSUSE Leap 15.5 kernel-default Already fixed
openSUSE Leap 15.5 kernel-source Already fixed
openSUSE Leap 15.5 kernel-source-azure Already fixed
openSUSE Leap 15.5 kernel-source-rt Already fixed
openSUSE Leap 15.6 kernel-default Already fixed
openSUSE Leap 15.6 kernel-source Already fixed
openSUSE Leap 15.6 kernel-source-azure Already fixed
openSUSE Leap 15.6 kernel-source-rt Already fixed
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Desktop 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-default Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-default Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS kernel-default 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-default Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS kernel-source Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-source Affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 kernel-source Affected
SUSE Linux Enterprise Module for Basesystem 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 SP3 kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-default Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-source Not affected
SUSE Linux Enterprise Server 15 SP2 kernel-source Affected
SUSE Linux Enterprise Server 15 SP2-LTSS kernel-default Affected
SUSE Linux Enterprise Server 15 SP2-LTSS kernel-source Affected
SUSE Linux Enterprise Server 15 SP3 kernel-source Affected
SUSE Linux Enterprise Server 15 SP3-LTSS kernel-default Affected
SUSE Linux Enterprise Server 15 SP3-LTSS kernel-source Affected
SUSE Linux Enterprise Server 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP4-LTSS kernel-default Already fixed
SUSE Linux Enterprise Server 15 SP4-LTSS kernel-source Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-default Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-default Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-source Affected
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
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 kernel-source Not affected
SUSE CaaS Platform 4.0 kernel-source Affected
SUSE CaaS Platform Toolchain 3 kernel-source Not affected
SUSE Enterprise Storage 6 kernel-source Affected
SUSE Enterprise Storage 7 kernel-source Affected
SUSE Enterprise Storage 7.1 kernel-default Affected
SUSE Enterprise Storage 7.1 kernel-source Affected
SUSE Linux Enterprise Desktop 11 SP4 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 SP4 kernel-source Affected
SUSE Linux Enterprise Desktop 15 kernel-source Affected
SUSE Linux Enterprise Desktop 15 SP1 kernel-source Affected
SUSE Linux Enterprise Desktop 15 SP2 kernel-source Affected
SUSE Linux Enterprise Desktop 15 SP3 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15-ESPOS kernel-source Affected
SUSE Linux Enterprise High Performance Computing 15-LTSS kernel-source Affected
SUSE Linux Enterprise Micro 5.0 kernel-default Affected
SUSE Linux Enterprise Module for Basesystem 15 kernel-source Affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 kernel-source Affected
SUSE Linux Enterprise Module for Development Tools 15 SP1 kernel-source Affected
SUSE Linux Enterprise Real Time 15 SP2 kernel-source Affected
SUSE Linux Enterprise Real Time 15 SP3 kernel-source Affected
SUSE Linux Enterprise Real Time 15 SP3 kernel-source-rt Unsupported
SUSE Linux Enterprise Real Time 15 SP4 kernel-source Already fixed
SUSE Linux Enterprise Real Time 15 SP4 kernel-source-rt Already fixed
SUSE Linux Enterprise Server 11 SP4 kernel-source Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-default Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-source Not affected
SUSE Linux Enterprise Server 11 SP4-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3-BCL kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP4 kernel-source Affected
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-source Affected
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-default Affected
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-source Affected
SUSE Linux Enterprise Server 15 kernel-source Affected
SUSE Linux Enterprise Server 15 SP1 kernel-source Affected
SUSE Linux Enterprise Server 15 SP1-BCL kernel-source Affected
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-default Affected
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-source Affected
SUSE Linux Enterprise Server 15 SP2-BCL kernel-source Affected
SUSE Linux Enterprise Server 15 SP3-BCL kernel-source Affected
SUSE Linux Enterprise Server 15-LTSS kernel-default Affected
SUSE Linux Enterprise Server 15-LTSS kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-default Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 15 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-source Affected
SUSE Manager Proxy 4.0 kernel-source Affected
SUSE Manager Proxy 4.1 kernel-source Affected
SUSE Manager Proxy 4.2 kernel-source Affected
SUSE Manager Retail Branch Server 4.0 kernel-source Affected
SUSE Manager Retail Branch Server 4.1 kernel-source Affected
SUSE Manager Retail Branch Server 4.2 kernel-source Affected
SUSE Manager Server 4.0 kernel-source Affected
SUSE Manager Server 4.1 kernel-source Affected
SUSE Manager Server 4.2 kernel-source Affected
SUSE OpenStack Cloud 8 kernel-source Not affected
SUSE OpenStack Cloud 9 kernel-default Affected
SUSE OpenStack Cloud 9 kernel-source Affected
SUSE OpenStack Cloud Crowbar 8 kernel-source Not affected
SUSE OpenStack Cloud Crowbar 9 kernel-default Affected
SUSE OpenStack Cloud Crowbar 9 kernel-source Affected
SUSE Real Time Module 15 SP3 kernel-source-rt Unsupported
SUSE Real Time Module 15 SP4 kernel-source-rt Already fixed
openSUSE Leap 15.3 kernel-source Affected
openSUSE Leap 15.3 kernel-source-rt Unsupported
openSUSE Leap 15.4 kernel-source Already fixed
openSUSE Leap 15.4 kernel-source-azure Already fixed
openSUSE Leap 15.4 kernel-source-rt Already fixed
Products at an unknown state of their lifecycle.
SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security kernel-source Affected
SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security kernel-source-azure Affected

SUSE Timeline for this CVE

CVE page created: Tue May 21 18:00:36 2024
CVE page last modified: Tue Oct 8 18:33:34 2024