SUSE-SU-2023:4358-1

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    SUSE-SU-2023:4358-1

    Published: 3 Nov 2023Last Modified: 4 Feb 2026

    Summary: Security update for the Linux Kernel

    Details: The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - 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#1215518) - CVE-2023-3777: Fixed a use-after-free vulnerability in netfilter: nf_tables component can be exploited to achieve local privilege escalation. (bsc#1215095) - CVE-2023-34324: Fixed a possible deadlock in Linux kernel event handling. (bsc#1215745). - CVE-2023-39189: Fixed a flaw in the Netfilter subsystem that could allow a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (bsc#1216046) - CVE-2023-3111: Fixed a use-after-free vulnerability in prepare_to_relocate in fs/btrfs/relocation.c (bsc#1212051). - CVE-2023-39194: Fixed an out of bounds read in the XFRM subsystem (bsc#1215861). - CVE-2023-39193: Fixed an out of bounds read in the xtables subsystem (bsc#1215860). - CVE-2023-39192: Fixed an out of bounds read in the netfilter (bsc#1215858). - CVE-2023-42754: Fixed a NULL pointer dereference in the IPv4 stack that could lead to denial of service (bsc#1215467). The following non-security bugs were fixed: - nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid() (bsc#1214842).

    References: https://www.suse.com/support/update/announcement/2023/suse-su-20234358-1/, https://bugzilla.suse.com/1212051, https://bugzilla.suse.com/1214842, https://bugzilla.suse.com/1215095, https://bugzilla.suse.com/1215467, https://bugzilla.suse.com/1215518, https://bugzilla.suse.com/1215745, https://bugzilla.suse.com/1215858, https://bugzilla.suse.com/1215860, https://bugzilla.suse.com/1215861, https://bugzilla.suse.com/1216046, https://www.suse.com/security/cve/CVE-2023-2163, https://www.suse.com/security/cve/CVE-2023-3111, https://www.suse.com/security/cve/CVE-2023-34324, https://www.suse.com/security/cve/CVE-2023-3777, https://www.suse.com/security/cve/CVE-2023-39189, https://www.suse.com/security/cve/CVE-2023-39192, https://www.suse.com/security/cve/CVE-2023-39193, https://www.suse.com/security/cve/CVE-2023-39194, https://www.suse.com/security/cve/CVE-2023-42754

    Affected packages

    Package

    Name: kernel-rt

    Purl: pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.1

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.3.18-150300.149.1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    SUSE-SU-2023:4358-1 | CVE-DB