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SUSE: 2024:1236-1 Important: Linux Kernel Live Patch 3 DoS Threat

* bsc#1218613 * bsc#1219078 * bsc#1219296 * bsc#1219432 . # Security update for the Linux Kernel (Live Patch 3 for SLE 15 SP5) Announcement ID: SUSE-SU-2024:1236-1 Rating: important References: * bsc#1218613 * bsc#1219078 * bsc#1219296 * bsc#1219432 Cross-References: * CVE-2023-42753 * CVE-2023-52340 * CVE-2024-0565 * CVE-2024-1085 CVSS scores: * CVE-2023-42753 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-42753 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * 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-2024-0565 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2024-0565 ( NVD ): 7.4 CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H * CVE-2024-1085 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2024-1085 ( NVD ): 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 15.5 * 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 four vulnerabilities can now be installed. ## Description: This update for the Linux Kernel 5.14.21-150500_55_19 fixes several issues. The following security issues were fixed: * CVE-2024-0565: Fixed an out-of-bounds memory read flaw in receive_encrypted_standard in fs/smb/client/smb2ops.c (bsc#1219078). * CVE-2023-42753: Fixed an array indexing vulnerability in the netfilter subsystem. This issue may have allowed a local user to crash the system or potentially escalate their privileges (bsc#1218613). * CVE-2024-1085: Fixed nf_tables use-after-free vulnerability in the nft_setelem_catchall_deactivate() function (bsc#1219432). * CVE-2023-52340: FixedICMPv6 “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-SP5-2024-1236=1 SUSE-SLE- Module-Live-Patching-15-SP5-2024-1245=1 SUSE-SLE-Module-Live- Patching-15-SP5-2024-1238=1 * openSUSE Leap 15.5 zypper in -t patch SUSE-2024-1245=1 SUSE-2024-1238=1 SUSE-2024-1236=1 ## Package List: * SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64) * kernel-livepatch-5_14_21-150500_55_12-default-9-150500.2.1 * kernel-livepatch-SLE15-SP5_Update_3-debugsource-8-150500.2.1 * kernel-livepatch-5_14_21-150500_53-default-10-150500.9.2 * kernel-livepatch-5_14_21-150500_55_12-default-debuginfo-9-150500.2.1 * kernel-livepatch-SLE15-SP5_Update_2-debugsource-9-150500.2.1 * kernel-livepatch-5_14_21-150500_53-default-debuginfo-10-150500.9.2 * kernel-livepatch-5_14_21-150500_55_19-default-debuginfo-8-150500.2.1 * kernel-livepatch-5_14_21-150500_55_19-default-8-150500.2.1 * kernel-livepatch-SLE15-SP5_Update_0-debugsource-10-150500.9.2 * openSUSE Leap 15.5 (ppc64le s390x x86_64) * kernel-livepatch-5_14_21-150500_55_12-default-9-150500.2.1 * kernel-livepatch-SLE15-SP5_Update_3-debugsource-8-150500.2.1 * kernel-livepatch-5_14_21-150500_53-default-10-150500.9.2 * kernel-livepatch-5_14_21-150500_55_12-default-debuginfo-9-150500.2.1 * kernel-livepatch-SLE15-SP5_Update_2-debugsource-9-150500.2.1 * kernel-livepatch-5_14_21-150500_53-default-debuginfo-10-150500.9.2 * kernel-livepatch-5_14_21-150500_55_19-default-debuginfo-8-150500.2.1 * kernel-livepatch-5_14_21-150500_55_19-default-8-150500.2.1 *kernel-livepatch-SLE15-SP5_Update_0-debugsource-10-150500.9.2 ## References: * https://www.suse.com/security/cve/CVE-2023-42753.html * https://www.suse.com/security/cve/CVE-2023-52340.html * https://www.suse.com/security/cve/CVE-2024-0565.html * https://www.suse.com/security/cve/CVE-2024-1085.html * https://bugzilla.suse.com/show_bug.cgi?id=1218613 * https://bugzilla.suse.com/show_bug.cgi?id=1219078 * https://bugzilla.suse.com/show_bug.cgi?id=1219296 * https://bugzilla.suse.com/show_bug.cgi?id=1219432 . Patch released for the Linux Kernel targeting severe vulnerabilities in SLE 15 SP5, particularly focusing on Denial of Service concerns.. Linux Kernel,Linux Security,SUSE Updates,Live Patching. . Severity: Important. LinuxSecurity.com Team

Apr 11, 2024 •Important SuSE