Security update for the Linux Kernel (Live Patch 20 for SLE 15 SP4)

Announcement ID:	SUSE-SU-2024:0428-1
Rating:	important
References:	bsc#1217522 bsc#1218255
Cross-References:	CVE-2023-6176 CVE-2023-6932
CVSS scores:	CVE-2023-6176 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-6176 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2023-6932 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-6932 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:	openSUSE Leap 15.4 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise Live Patching 15-SP4 SUSE Linux Enterprise Micro 5.3 SUSE Linux Enterprise Micro 5.4 SUSE Linux Enterprise Real Time 15 SP4 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP4

An update that solves two vulnerabilities can now be installed.

Description:

This update for the Linux Kernel 5.14.21-150400_24_97 fixes several issues.

The following security issues were fixed:

• CVE-2023-6932: Fixed a use-after-free vulnerability in the ipv4 igmp component that could lead to local privilege escalation (bsc#1218255).
• CVE-2023-6176: Fixed a denial of service in the cryptographic algorithm scatterwalk functionality (bsc#1217522).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• openSUSE Leap 15.4
  zypper in -t patch SUSE-2024-428=1
• SUSE Linux Enterprise Live Patching 15-SP4
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2024-428=1

Package List:

• openSUSE Leap 15.4 (ppc64le s390x x86_64)
  • kernel-livepatch-5_14_21-150400_24_97-default-2-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_20-debugsource-2-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_97-default-debuginfo-2-150400.2.1
• SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
  • kernel-livepatch-5_14_21-150400_24_97-default-2-150400.2.1
  • kernel-livepatch-SLE15-SP4_Update_20-debugsource-2-150400.2.1
  • kernel-livepatch-5_14_21-150400_24_97-default-debuginfo-2-150400.2.1

References:

• https://www.suse.com/security/cve/CVE-2023-6176.html
• https://www.suse.com/security/cve/CVE-2023-6932.html
• https://bugzilla.suse.com/show_bug.cgi?id=1217522
• https://bugzilla.suse.com/show_bug.cgi?id=1218255