Security update for the Linux Kernel RT (Live Patch 1 for SLE 15 SP5) SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2024:0995-1 Final 1 1 2024-03-26T09:33:27Z current 2024-03-26T09:33:27Z 2024-03-26T09:33:27Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for the Linux Kernel RT (Live Patch 1 for SLE 15 SP5) This update for the Linux Kernel 5.14.21-150500_13_5 fixes several issues. The following security issues were fixed: - CVE-2023-6531: Fixed a use-after-free flaw due to a race problem in the unix garbage collector's deletion of SKB races with unix_stream_read_generic()on the socket that the SKB is queued on (bsc#1218487). - CVE-2023-46813: Fixed a local privilege escalation with user-space programs that have access to MMIO regions (bsc#1216898). - CVE-2023-39191: Fixed a lack of validation of dynamic pointers within user-supplied eBPF programs that may have allowed an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code. (bsc#1215863) - CVE-2023-51779: Fixed a use-after-free because of a bt_sock_ioctl race condition in bt_sock_recvmsg (bsc#1218610). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2024-995,SUSE-SLE-Module-Live-Patching-15-SP5-2024-995 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2024/suse-su-20240995-1/ Link for SUSE-SU-2024:0995-1 https://lists.suse.com/pipermail/sle-security-updates/2024-March/018214.html E-Mail link for SUSE-SU-2024:0995-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1215887 SUSE Bug 1215887 https://bugzilla.suse.com/1216898 SUSE Bug 1216898 https://bugzilla.suse.com/1218487 SUSE Bug 1218487 https://bugzilla.suse.com/1218610 SUSE Bug 1218610 https://www.suse.com/security/cve/CVE-2023-39191/ SUSE CVE CVE-2023-39191 page https://www.suse.com/security/cve/CVE-2023-46813/ SUSE CVE CVE-2023-46813 page https://www.suse.com/security/cve/CVE-2023-51779/ SUSE CVE CVE-2023-51779 page https://www.suse.com/security/cve/CVE-2023-6531/ SUSE CVE CVE-2023-6531 page SUSE Linux Enterprise Live Patching 15 SP5 kernel-livepatch-5_14_21-150500_13_5-rt-8-150500.2.2 kernel-livepatch-5_14_21-150500_13_5-rt-8-150500.2.2 as a component of SUSE Linux Enterprise Live Patching 15 SP5 An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel. CVE-2023-39191 SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_13_5-rt-8-150500.2.2 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/2024/suse-su-20240995-1/ https://www.suse.com/security/cve/CVE-2023-39191.html CVE-2023-39191 https://bugzilla.suse.com/1215863 SUSE Bug 1215863 https://bugzilla.suse.com/1215887 SUSE Bug 1215887 An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it. CVE-2023-46813 SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_13_5-rt-8-150500.2.2 moderate 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/2024/suse-su-20240995-1/ https://www.suse.com/security/cve/CVE-2023-46813.html CVE-2023-46813 https://bugzilla.suse.com/1212649 SUSE Bug 1212649 https://bugzilla.suse.com/1216896 SUSE Bug 1216896 bt_sock_recvmsg in net/bluetooth/af_bluetooth.c in the Linux kernel through 6.6.8 has a use-after-free because of a bt_sock_ioctl race condition. CVE-2023-51779 SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_13_5-rt-8-150500.2.2 moderate 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/2024/suse-su-20240995-1/ https://www.suse.com/security/cve/CVE-2023-51779.html CVE-2023-51779 https://bugzilla.suse.com/1218559 SUSE Bug 1218559 https://bugzilla.suse.com/1218610 SUSE Bug 1218610 https://bugzilla.suse.com/1220015 SUSE Bug 1220015 https://bugzilla.suse.com/1220191 SUSE Bug 1220191 https://bugzilla.suse.com/1221578 SUSE Bug 1221578 https://bugzilla.suse.com/1221598 SUSE Bug 1221598 A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on. CVE-2023-6531 SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_13_5-rt-8-150500.2.2 moderate 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/2024/suse-su-20240995-1/ https://www.suse.com/security/cve/CVE-2023-6531.html CVE-2023-6531 https://bugzilla.suse.com/1218447 SUSE Bug 1218447 https://bugzilla.suse.com/1218487 SUSE Bug 1218487