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-2023:0270-1
Rating: important
References: #1204167 #1205186 #1206373
Cross-References:CVE-2022-2602 CVE-2022-3424 CVE-2022-4379
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 three vulnerabilities is now available.

Description:

This update for the Linux Kernel 5.14.21-150400_24_28 fixes several issues.
The following security issues were fixed:

  • CVE-2022-4379: A use-after-free vulnerability was found in __nfs42_ssc_open() in fs/nfs/nfs4file.c in the Linux kernel. This flaw allowed an attacker to conduct a remote denial of service attack (bsc#1206373).
  • CVE-2022-3424: Fixed use-after-free in gru_set_context_option(), gru_fault() and gru_handle_user_call_os() that could lead to kernel panic (bsc#1204167).
  • CVE-2022-2602: Fixed a local privilege escalation vulnerability involving Unix socket Garbage Collection and io_uring (bsc#1205186).

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-SP4-2023-269=1 SUSE-SLE-Module-Live-Patching-15-SP4-2023-270=1 SUSE-SLE-Module-Live-Patching-15-SP4-2023-272=1

Package List:

  • SUSE Linux Enterprise Module for Live Patching 15-SP4 (ppc64le s390x x86_64):
    • kernel-livepatch-5_14_21-150400_22-default-10-150400.4.2
    • kernel-livepatch-5_14_21-150400_22-default-debuginfo-10-150400.4.2
    • kernel-livepatch-5_14_21-150400_24_18-default-7-150400.2.1
    • kernel-livepatch-5_14_21-150400_24_28-default-4-150400.2.1
    • kernel-livepatch-5_14_21-150400_24_28-default-debuginfo-4-150400.2.1
    • kernel-livepatch-SLE15-SP4_Update_0-debugsource-10-150400.4.2
    • kernel-livepatch-SLE15-SP4_Update_4-debugsource-4-150400.2.1

References: