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SUSE: 2023:4261-1 Important: Live Kernel Security Update for SLE 15 SP3

* bsc#1210619 * bsc#1214812 * bsc#1215440 Cross-References: . # Security update for the Linux Kernel (Live Patch 36 for SLE 15 SP3) Announcement ID: SUSE-SU-2023:4261-1 Rating: important References: * bsc#1210619 * bsc#1214812 * bsc#1215440 Cross-References: * CVE-2023-1829 * CVE-2023-4004 * CVE-2023-4623 CVSS scores: * CVE-2023-1829 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-1829 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-4004 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-4004 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-4623 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2023-4623 ( 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 15.3 * SUSE Linux Enterprise High Performance Computing 15 SP3 * SUSE Linux Enterprise Live Patching 15-SP3 * SUSE Linux Enterprise Micro 5.1 * SUSE Linux Enterprise Micro 5.2 * SUSE Linux Enterprise Server 15 SP3 * SUSE Linux Enterprise Server for SAP Applications 15 SP3 An update that solves three vulnerabilities can now be installed. ## Description: This update for the Linux Kernel 5.3.18-150300_59_133 fixes several issues. The following security issues were fixed: * CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215440). * CVE-2023-4004: Fixed improper element removal netfilter nft_set_pipapo (bsc#1214812). * CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210619). ## 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 15.3 zypper in -t patch SUSE-2023-4261=1 * SUSE Linux Enterprise Live Patching 15-SP3 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2023-4261=1 ## Package List: * openSUSE Leap 15.3 (ppc64le s390x x86_64) * kernel-livepatch-5_3_18-150300_59_133-default-debuginfo-2-150300.2.2 * kernel-livepatch-SLE15-SP3_Update_36-debugsource-2-150300.2.2 * kernel-livepatch-5_3_18-150300_59_133-default-2-150300.2.2 * openSUSE Leap 15.3 (x86_64) * kernel-livepatch-5_3_18-150300_59_133-preempt-debuginfo-2-150300.2.2 * kernel-livepatch-5_3_18-150300_59_133-preempt-2-150300.2.2 * SUSE Linux Enterprise Live Patching 15-SP3 (ppc64le s390x x86_64) * kernel-livepatch-5_3_18-150300_59_133-default-2-150300.2.2 ## References: * https://www.suse.com/security/cve/CVE-2023-1829.html * https://www.suse.com/security/cve/CVE-2023-4004.html * https://www.suse.com/security/cve/CVE-2023-4623.html * https://bugzilla.suse.com/show_bug.cgi?id=1210619 * https://bugzilla.suse.com/show_bug.cgi?id=1214812 * https://bugzilla.suse.com/show_bug.cgi?id=1215440 . Important security patch released for the Linux kernel, targeting various security flaws present in SUSE operating environments.. SUSE Live Patch,Linux Kernel Security,Kernel Update,SUSE Patch. . Severity: Important. LinuxSecurity.com Team

Oct 30, 2023 •Important SuSE