# Security update for the Linux Kernel (Live Patch 23 for SLE 15 SP4) Announcement ID: SUSE-SU-2024:1411-1 Rating: important References: * bsc#1219296 * bsc#1220828 Cross-References: * CVE-2023-52340 * CVE-2024-26622 CVSS scores: * CVE-2023-52340 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2024-26622 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/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_108 fixes several issues. The following security issues were fixed: * CVE-2024-26622: Fixed UAF write bug in tomoyo_write_control() (bsc#1220828). * CVE-2023-52340: Fixed ICMPv6 “Packet Too Big” packets force a DoS of the Linux kernel by forcing 100% CPU (bsc#1219296). ## 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-2024-1411=1 * SUSE Linux Enterprise Live Patching 15-SP4 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2024-1411=1 ## Package List: * openSUSE Leap 15.4 (ppc64le s390x x86_64) * kernel-livepatch-5_14_21-150400_24_108-default-debuginfo-3-150400.9.8.1 * kernel-livepatch-SLE15-SP4_Update_23-debugsource-3-150400.9.8.1 * kernel-livepatch-5_14_21-150400_24_108-default-3-150400.9.8.1 * SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64) * kernel-livepatch-5_14_21-150400_24_108-default-debuginfo-3-150400.9.8.1 * kernel-livepatch-SLE15-SP4_Update_23-debugsource-3-150400.9.8.1 * kernel-livepatch-5_14_21-150400_24_108-default-3-150400.9.8.1 ## References: * https://www.suse.com/security/cve/CVE-2023-52340.html * https://www.suse.com/security/cve/CVE-2024-26622.html * https://bugzilla.suse.com/show_bug.cgi?id=1219296 * https://bugzilla.suse.com/show_bug.cgi?id=1220828