SUSE-SU-2023:4841-1

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SUSE-SU-2023:4841-1

Summary: Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP5)

Details: This update for the Linux Kernel 5.14.21-150500_55_12 fixes several issues. The following security issues were fixed: - CVE-2023-3610: Fixed use-after-free vulnerability in nf_tables can be exploited to achieve local privilege escalation (bsc#1213584). - CVE-2023-3777: Fixed a use-after-free vulnerability in netfilter: nf_tables component can be exploited to achieve local privilege escalation. (bsc#1215097) - CVE-2023-5345: Fixed an use-after-free vulnerability in the fs/smb/client component which could be exploited to achieve local privilege escalation. (bsc#1215971) - CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215442). - CVE-2023-2163: Fixed an incorrect verifier pruning in BPF that could lead to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape. (bsc#1215519)

References: https://www.suse.com/support/update/announcement/2023/suse-su-20234841-1/, https://bugzilla.suse.com/1213584, https://bugzilla.suse.com/1215097, https://bugzilla.suse.com/1215442, https://bugzilla.suse.com/1215519, https://bugzilla.suse.com/1215971, https://www.suse.com/security/cve/CVE-2023-2163, https://www.suse.com/security/cve/CVE-2023-3610, https://www.suse.com/security/cve/CVE-2023-3777, https://www.suse.com/security/cve/CVE-2023-4622, https://www.suse.com/security/cve/CVE-2023-5345