Security update for the Linux Kernel (Live Patch 4 for SLE 15 SP4)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 4 for SLE 15 SP4)
Announcement ID: SUSE-SU-2022:4036-1
Rating: important
References: #1196959
Cross-References:CVE-2021-39698
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 15-SP4
  • SUSE Linux Enterprise Module for Live Patching 15-SP4
  • SUSE Linux Enterprise Server 15-SP4
  • SUSE Linux Enterprise Server for SAP Applications 15-SP4

An update that fixes one vulnerability is now available.

Description:

This update for the Linux Kernel 5.14.21-150400_24_28 fixes one issue.
The following security issue was 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)

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-SP4:
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2022-4036=1

Package List:

  • SUSE Linux Enterprise Module for Live Patching 15-SP4 (ppc64le s390x x86_64):
    • kernel-livepatch-5_14_21-150400_24_28-default-2-150400.2.1
    • kernel-livepatch-5_14_21-150400_24_28-default-debuginfo-2-150400.2.1
    • kernel-livepatch-SLE15-SP4_Update_4-debugsource-2-150400.2.1

References: