Security update for the Linux Kernel (Live Patch 26 for SLE 15 SP2)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 26 for SLE 15 SP2)
Announcement ID: SUSE-SU-2022:1634-1
Rating: important
References: #1196959 #1197344 #1198133
Cross-References:CVE-2021-39698 CVE-2022-1011 CVE-2022-1158
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 15-SP2
  • SUSE Linux Enterprise Module for Live Patching 15-SP2
  • SUSE Linux Enterprise Server 15-SP2
  • SUSE Linux Enterprise Server for SAP Applications 15-SP2

An update that fixes three vulnerabilities is now available.

Description:

This update for the Linux Kernel 5.3.18-150200_24_112 fixes several issues.
The following security issues were fixed:

  • - CVE-2022-1158: Fixed KVM x86/mmu compare-and-exchange of gPTE via the user address (bsc#1198133)
  • CVE-2022-1011: A use-after-free flaw was found in the FUSE filesystem in the way a user triggers write(). This flaw allowed a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation. (bsc#1197344)
  • - CVE-2021-39698: In aio_poll_complete_work of aio.c, there was a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. (bsc#1196959)

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-SP2:
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2022-1634=1

Package List:

  • SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x x86_64):
    • kernel-livepatch-5_3_18-150200_24_112-default-2-150200.2.1
    • kernel-livepatch-5_3_18-150200_24_112-default-debuginfo-2-150200.2.1
    • kernel-livepatch-SLE15-SP2_Update_26-debugsource-2-150200.2.1

References: