Security update for the Linux Kernel (Live Patch 31 for SLE 15 SP2)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 31 for SLE 15 SP2)
Announcement ID: SUSE-SU-2022:4038-1
Rating: important
References: #1196959 #1203067
Cross-References:CVE-2021-39698 CVE-2022-39189
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 15-SP2
  • SUSE Linux Enterprise High Performance Computing 15-SP3
  • SUSE Linux Enterprise Micro 5.1
  • SUSE Linux Enterprise Module for Live Patching 15-SP2
  • SUSE Linux Enterprise Module for Live Patching 15-SP3
  • SUSE Linux Enterprise Server 15-SP2
  • SUSE Linux Enterprise Server 15-SP3
  • SUSE Linux Enterprise Server for SAP Applications 15-SP2
  • SUSE Linux Enterprise Server for SAP Applications 15-SP3

An update that fixes two vulnerabilities is now available.

Description:

This update for the Linux Kernel 5.3.18-150200_24_134 fixes several issues.
The following security issues were fixed:

  • CVE-2021-39698: Fixed a possible memory corruption due to a use after free in aio_poll_complete_work. This could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1196956)
  • CVE-2022-39189: Fixed a bug in the x86 KVM subsystem which allows unprivileged guest users to compromise the guest kernel because TLB flush operations are mishandled (bnc#1203066).

Patch Instructions:

To install this SUSE Security 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 Module for Live Patching 15-SP3:
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2022-4038=1
  • SUSE Linux Enterprise Module for Live Patching 15-SP2:
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2022-4032=1

Package List:

  • SUSE Linux Enterprise Module for Live Patching 15-SP3 (ppc64le s390x x86_64):
    • kernel-livepatch-5_3_18-150300_59_98-default-2-150300.2.1
  • SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x x86_64):
    • kernel-livepatch-5_3_18-150200_24_134-default-2-150200.2.1
    • kernel-livepatch-5_3_18-150200_24_134-default-debuginfo-2-150200.2.1
    • kernel-livepatch-SLE15-SP2_Update_31-debugsource-2-150200.2.1

References: