SUSE-SU-2023:2734-1: important: Security update for the Linux Kernel (Live Patch 32 for SLE 15 SP3)

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Thu Jun 29 20:30:02 UTC 2023



# Security update for the Linux Kernel (Live Patch 32 for SLE 15 SP3)

Announcement ID: SUSE-SU-2023:2734-1  
Rating: important  
References:

  * #1210989

  
Cross-References:

  * CVE-2023-31436

  
CVSS scores:

  * CVE-2023-31436 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-31436 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise High Performance Computing 15 SP3
  * SUSE Linux Enterprise High Performance Computing 15 SP4
  * SUSE Linux Enterprise Live Patching 15-SP3
  * SUSE Linux Enterprise Live Patching 15-SP4
  * SUSE Linux Enterprise Micro 5.1
  * SUSE Linux Enterprise Micro 5.2
  * SUSE Linux Enterprise Micro 5.3
  * SUSE Linux Enterprise Micro 5.4
  * SUSE Linux Enterprise Real Time 15 SP4
  * SUSE Linux Enterprise Server 15 SP3
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP3
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for the Linux Kernel 5.3.18-150300_59_121 fixes one issue.

The following security issue was fixed:

  * CVE-2023-31436: Fixed an out-of-bounds write in qfq_change_class() because
    lmax can exceed QFQ_MIN_LMAX (bsc#1210989).

## Patch Instructions:

To install this SUSE Important update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Live Patching 15-SP3  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2023-2734=1

  * SUSE Linux Enterprise Live Patching 15-SP4  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-2736=1 SUSE-SLE-
Module-Live-Patching-15-SP4-2023-2737=1

## Package List:

  * SUSE Linux Enterprise Live Patching 15-SP3 (ppc64le s390x x86_64)
    * kernel-livepatch-5_3_18-150300_59_121-default-3-150300.2.1
  * SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
    * kernel-livepatch-5_14_21-150400_24_60-default-debuginfo-3-150400.2.2
    * kernel-livepatch-SLE15-SP4_Update_12-debugsource-3-150400.2.2
    * kernel-livepatch-5_14_21-150400_24_63-default-3-150400.2.2
    * kernel-livepatch-5_14_21-150400_24_63-default-debuginfo-3-150400.2.2
    * kernel-livepatch-5_14_21-150400_24_60-default-3-150400.2.2
    * kernel-livepatch-SLE15-SP4_Update_11-debugsource-3-150400.2.2

## References:

  * https://www.suse.com/security/cve/CVE-2023-31436.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1210989

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