# 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