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

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


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