Security update for the Linux Kernel (Live Patch 34 for SLE 12 SP4)

Announcement ID: SUSE-SU-2023:2666-1
Rating: important
CVSS scores:
  • CVE-2023-1390 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2023-1390 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • 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 12 SP4
  • SUSE Linux Enterprise Live Patching 12-SP4
  • SUSE Linux Enterprise Server 12 SP4
  • SUSE Linux Enterprise Server for SAP Applications 12 SP4

An update that solves two vulnerabilities can now be installed.


This update for the Linux Kernel 4.12.14-95_120 fixes several issues.

The following security issues were fixed:

  • CVE-2023-31436: Fixed an out-of-bounds write in qfq_change_class() because lmax can exceed QFQ_MIN_LMAX (bsc#1210989).
  • CVE-2023-1390: Fixed remote DoS vulnerability in tipc_link_xmit() (bsc#1210779).

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 12-SP4
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2023-2666=1

Package List:

  • SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64)
    • kgraft-patch-4_12_14-95_120-default-4-2.1