SUSE-SU-2023:0331-1: important: Security update for the Linux Kernel (Live Patch 3 for SLE 15 SP4)

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 3 for SLE 15 SP4)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2023:0331-1
Rating:             important
References:         #1204167 #1205186 #1206373 
Cross-References:   CVE-2022-2602 CVE-2022-3424 CVE-2022-4379
                   
CVSS scores:
                    CVE-2022-2602 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-3424 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-4379 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-4379 (SUSE): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15-SP4
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   An update that fixes three vulnerabilities is now available.

Description:

   This update for the Linux Kernel 5.14.21-150400_24_21 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-SP4-2023-331=1



Package List:

   - SUSE Linux Enterprise Module for Live Patching 15-SP4 (ppc64le s390x x86_64):

      kernel-livepatch-5_14_21-150400_24_21-default-6-150400.2.1
      kernel-livepatch-5_14_21-150400_24_21-default-debuginfo-6-150400.2.1
      kernel-livepatch-SLE15-SP4_Update_3-debugsource-6-150400.2.1


References:

   https://www.suse.com/security/cve/CVE-2022-2602.html
   https://www.suse.com/security/cve/CVE-2022-3424.html
   https://www.suse.com/security/cve/CVE-2022-4379.html
   https://bugzilla.suse.com/1204167
   https://bugzilla.suse.com/1205186
   https://bugzilla.suse.com/1206373