Security update for the Linux Kernel (Live Patch 37 for SLE 12 SP5)

Announcement ID: SUSE-SU-2023:4321-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2023-4623 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-4623 ( 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 12 SP5
  • SUSE Linux Enterprise High Performance Computing 15 SP1
  • SUSE Linux Enterprise Live Patching 15-SP1
  • SUSE Linux Enterprise Live Patching 12-SP5
  • SUSE Linux Enterprise Server 12 SP5
  • SUSE Linux Enterprise Server 15 SP1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • SUSE Linux Enterprise Server for SAP Applications 15 SP1

An update that solves one vulnerability can now be installed.

Description:

This update for the Linux Kernel 4.12.14-122_139 fixes one issue.

The following security issue was fixed:

  • CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215440).

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 12-SP5
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2023-4324=1 SUSE-SLE-Live-Patching-12-SP5-2023-4318=1
  • SUSE Linux Enterprise Live Patching 15-SP1
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2023-4321=1

Package List:

  • SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)
    • kgraft-patch-4_12_14-122_139-default-11-2.3
    • kgraft-patch-4_12_14-122_159-default-6-2.2
  • SUSE Linux Enterprise Live Patching 15-SP1 (ppc64le x86_64)
    • kernel-livepatch-4_12_14-150100_197_151-default-4-150100.2.2

References: