Security update for the Linux Kernel RT (Live Patch 3 for SLE 15 SP5) SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2023:3806-1 Final 1 1 2023-09-27T13:35:26Z current 2023-09-27T13:35:26Z 2023-09-27T13:35:26Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for the Linux Kernel RT (Live Patch 3 for SLE 15 SP5) This update for the Linux Kernel 5.14.21-150500_13_11 fixes one issue. The following security issue was fixed: - CVE-2023-4273: Fixed a flaw in the exFAT driver of the Linux kernel that alloawed a local privileged attacker to overflow the kernel stack (bsc#1214123). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2023-3806,SUSE-2023-3807,SUSE-SLE-Module-Live-Patching-15-SP4-2023-3806,SUSE-SLE-Module-Live-Patching-15-SP5-2023-3807 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2023/suse-su-20233806-1/ Link for SUSE-SU-2023:3806-1 https://lists.suse.com/pipermail/sle-security-updates/2023-September/016344.html E-Mail link for SUSE-SU-2023:3806-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1214123 SUSE Bug 1214123 https://www.suse.com/security/cve/CVE-2023-4273/ SUSE CVE CVE-2023-4273 page SUSE Linux Enterprise Live Patching 15 SP4 SUSE Linux Enterprise Live Patching 15 SP5 kernel-livepatch-5_14_21-150400_15_46-rt-2-150400.2.1 kernel-livepatch-5_14_21-150500_13_11-rt-2-150500.2.1 kernel-livepatch-5_14_21-150400_15_46-rt-2-150400.2.1 as a component of SUSE Linux Enterprise Live Patching 15 SP4 kernel-livepatch-5_14_21-150500_13_11-rt-2-150500.2.1 as a component of SUSE Linux Enterprise Live Patching 15 SP5 A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack. CVE-2023-4273 SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_15_46-rt-2-150400.2.1 SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_13_11-rt-2-150500.2.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2023/suse-su-20233806-1/ https://www.suse.com/security/cve/CVE-2023-4273.html CVE-2023-4273 https://bugzilla.suse.com/1214120 SUSE Bug 1214120 https://bugzilla.suse.com/1214123 SUSE Bug 1214123