# Security update for the Linux Kernel RT (Live Patch 10 for SLE 15 SP5) Announcement ID: SUSE-SU-2024:1273-1 Rating: important References: * bsc#1219296 Cross-References: * CVE-2023-52340 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 Affected Products: * openSUSE Leap 15.5 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise Live Patching 15-SP5 * SUSE Linux Enterprise Micro 5.5 * SUSE Linux Enterprise Real Time 15 SP5 * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 An update that solves one vulnerability can now be installed. ## Description: This update for the Linux Kernel 5.14.21-150500_13_35 fixes one issue. The following security issue was fixed: * 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: * SUSE Linux Enterprise Live Patching 15-SP5 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2024-1273=1 * openSUSE Leap 15.5 zypper in -t patch SUSE-2024-1273=1 ## Package List: * SUSE Linux Enterprise Live Patching 15-SP5 (x86_64) * kernel-livepatch-5_14_21-150500_13_35-rt-2-150500.11.8.1 * kernel-livepatch-SLE15-SP5-RT_Update_10-debugsource-2-150500.11.8.1 * kernel-livepatch-5_14_21-150500_13_35-rt-debuginfo-2-150500.11.8.1 * openSUSE Leap 15.5 (x86_64) * kernel-livepatch-5_14_21-150500_13_35-rt-2-150500.11.8.1 * kernel-livepatch-SLE15-SP5-RT_Update_10-debugsource-2-150500.11.8.1 * kernel-livepatch-5_14_21-150500_13_35-rt-debuginfo-2-150500.11.8.1 ## References: * https://www.suse.com/security/cve/CVE-2023-52340.html * https://bugzilla.suse.com/show_bug.cgi?id=1219296