# Security update for the Linux Kernel (Live Patch 13 for SLE 15 SP4) Announcement ID: SUSE-SU-2023:3657-1 Rating: important References: * #1208839 * #1211395 * #1212849 * #1213063 Cross-References: * CVE-2023-1077 * CVE-2023-2156 * CVE-2023-3090 * CVE-2023-35001 CVSS scores: * CVE-2023-1077 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-1077 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-2156 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2023-2156 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2023-3090 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-3090 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-35001 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-35001 ( 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 15.4 * 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 four vulnerabilities can now be installed. ## Description: This update for the Linux Kernel 5.14.21-150400_24_66 fixes several issues. The following security issues were fixed: * CVE-2023-2156: Fixed a flaw in the networking subsystem within the handling of the RPL protocol (bsc#1211395). * CVE-2023-35001: Fixed an out-of-bounds memory access flaw in nft_byteorder that could allow a local attacker to escalate their privilege (bsc#1213063). * CVE-2023-1077: Fixed a type confusion in pick_next_rt_entity(), that could cause memory corruption (bsc#1208839). * CVE-2023-3090: Fixed a heap out-of-bounds write in the ipvlan network driver (bsc#1212849). ## 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-SP4 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-3657=1 * openSUSE Leap 15.4 zypper in -t patch SUSE-2023-3657=1 ## Package List: * SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64) * kernel-livepatch-5_14_21-150400_24_66-default-3-150400.2.1 * kernel-livepatch-5_14_21-150400_24_66-default-debuginfo-3-150400.2.1 * kernel-livepatch-SLE15-SP4_Update_13-debugsource-3-150400.2.1 * openSUSE Leap 15.4 (ppc64le s390x x86_64) * kernel-livepatch-5_14_21-150400_24_66-default-3-150400.2.1 * kernel-livepatch-5_14_21-150400_24_66-default-debuginfo-3-150400.2.1 * kernel-livepatch-SLE15-SP4_Update_13-debugsource-3-150400.2.1 ## References: * https://www.suse.com/security/cve/CVE-2023-1077.html * https://www.suse.com/security/cve/CVE-2023-2156.html * https://www.suse.com/security/cve/CVE-2023-3090.html * https://www.suse.com/security/cve/CVE-2023-35001.html * https://bugzilla.suse.com/show_bug.cgi?id=1208839 * https://bugzilla.suse.com/show_bug.cgi?id=1211395 * https://bugzilla.suse.com/show_bug.cgi?id=1212849 * https://bugzilla.suse.com/show_bug.cgi?id=1213063