SUSE-SU-2023:3677-1: important: Security update for the Linux Kernel RT (Live Patch 9 for SLE 15 SP4)

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Tue Sep 19 16:31:21 UTC 2023



# Security update for the Linux Kernel RT (Live Patch 9 for SLE 15 SP4)

Announcement ID: SUSE-SU-2023:3677-1  
Rating: important  
References:

  * #1211395
  * #1213063

  
Cross-References:

  * CVE-2023-2156
  * CVE-2023-35001

  
CVSS scores:

  * CVE-2023-2156 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-2156 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-35001 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-35001 ( 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 SP4
  * SUSE Linux Enterprise Live Patching 15-SP4
  * SUSE Linux Enterprise Micro 5.3
  * SUSE Linux Enterprise Micro 5.4
  * SUSE Linux Enterprise Real Time 15 SP4
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for the Linux Kernel 5.14.21-150400_15_40 fixes several issues.

The following security issues were fixed:

  * CVE-2023-2156: Fixed a flaw in the networking subsystem within the handling
    of the RPL protocol (bsc#1211395).
  * CVE-2023-35001: Fixed an out-of-bounds memory access flaw in nft_byteorder
    that could allow a local attacker to escalate their privilege (bsc#1213063).

## Patch Instructions:

To install this SUSE 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-SP4  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-3677=1

## Package List:

  * SUSE Linux Enterprise Live Patching 15-SP4 (x86_64)
    * kernel-livepatch-SLE15-SP4-RT_Update_9-debugsource-2-150400.2.1
    * kernel-livepatch-5_14_21-150400_15_40-rt-2-150400.2.1
    * kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo-2-150400.2.1

## References:

  * https://www.suse.com/security/cve/CVE-2023-2156.html
  * https://www.suse.com/security/cve/CVE-2023-35001.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1211395
  * https://bugzilla.suse.com/show_bug.cgi?id=1213063

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