# Security update for the Linux Kernel (Live Patch 41 for SLE 15 SP3) Announcement ID: SUSE-SU-2024:1207-1 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 15.3 * SUSE Linux Enterprise High Performance Computing 12 SP5 * SUSE Linux Enterprise High Performance Computing 15 SP2 * SUSE Linux Enterprise High Performance Computing 15 SP3 * SUSE Linux Enterprise Live Patching 15-SP2 * SUSE Linux Enterprise Live Patching 12-SP5 * SUSE Linux Enterprise Live Patching 15-SP3 * SUSE Linux Enterprise Micro 5.1 * SUSE Linux Enterprise Micro 5.2 * SUSE Linux Enterprise Server 12 SP5 * SUSE Linux Enterprise Server 15 SP2 * SUSE Linux Enterprise Server 15 SP3 * SUSE Linux Enterprise Server for SAP Applications 12 SP5 * SUSE Linux Enterprise Server for SAP Applications 15 SP2 * SUSE Linux Enterprise Server for SAP Applications 15 SP3 An update that solves one vulnerability can now be installed. ## Description: This update for the Linux Kernel 5.3.18-150300_59_150 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 12-SP5 zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2024-1219=1 SUSE-SLE-Live- Patching-12-SP5-2024-1207=1 SUSE-SLE-Live-Patching-12-SP5-2024-1208=1 SUSE-SLE- Live-Patching-12-SP5-2024-1209=1 SUSE-SLE-Live-Patching-12-SP5-2024-1210=1 SUSE- SLE-Live-Patching-12-SP5-2024-1211=1 SUSE-SLE-Live-Patching-12-SP5-2024-1212=1 SUSE-SLE-Live-Patching-12-SP5-2024-1213=1 SUSE-SLE-Live- Patching-12-SP5-2024-1214=1 SUSE-SLE-Live-Patching-12-SP5-2024-1215=1 SUSE-SLE- Live-Patching-12-SP5-2024-1216=1 SUSE-SLE-Live-Patching-12-SP5-2024-1217=1 SUSE- SLE-Live-Patching-12-SP5-2024-1218=1 * SUSE Linux Enterprise Live Patching 15-SP2 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2024-1227=1 * openSUSE Leap 15.3 zypper in -t patch SUSE-2024-1247=1 * SUSE Linux Enterprise Live Patching 15-SP3 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2024-1247=1 ## Package List: * SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64) * kgraft-patch-4_12_14-122_165-default-9-2.1 * kgraft-patch-4_12_14-122_179-default-6-2.1 * kgraft-patch-4_12_14-122_150-default-14-2.2 * kgraft-patch-4_12_14-122_153-default-12-2.1 * kgraft-patch-4_12_14-122_176-default-7-2.1 * kgraft-patch-4_12_14-122_173-default-8-2.1 * kgraft-patch-4_12_14-122_194-default-3-2.1 * kgraft-patch-4_12_14-122_189-default-4-2.1 * kgraft-patch-4_12_14-122_183-default-6-2.1 * kgraft-patch-4_12_14-122_186-default-5-2.1 * kgraft-patch-4_12_14-122_162-default-10-2.1 * kgraft-patch-4_12_14-122_156-default-12-2.1 * kgraft-patch-4_12_14-122_159-default-11-2.1 * SUSE Linux Enterprise Live Patching 15-SP2 (ppc64le s390x x86_64) * kernel-livepatch-SLE15-SP2_Update_45-debugsource-4-150200.2.1 * kernel-livepatch-5_3_18-150200_24_178-default-4-150200.2.1 * kernel-livepatch-5_3_18-150200_24_178-default-debuginfo-4-150200.2.1 * openSUSE Leap 15.3 (ppc64le s390x x86_64) * kernel-livepatch-5_3_18-150300_59_150-default-4-150300.2.1 * kernel-livepatch-5_3_18-150300_59_150-default-debuginfo-4-150300.2.1 * kernel-livepatch-SLE15-SP3_Update_41-debugsource-4-150300.2.1 * openSUSE Leap 15.3 (x86_64) * kernel-livepatch-5_3_18-150300_59_150-preempt-4-150300.2.1 * kernel-livepatch-5_3_18-150300_59_150-preempt-debuginfo-4-150300.2.1 * SUSE Linux Enterprise Live Patching 15-SP3 (ppc64le s390x x86_64) * kernel-livepatch-5_3_18-150300_59_150-default-4-150300.2.1 ## References: * https://www.suse.com/security/cve/CVE-2023-52340.html * https://bugzilla.suse.com/show_bug.cgi?id=1219296