SUSE-SU-2023:2743-1

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    SUSE-SU-2023:2743-1

    Published: 30 Jun 2023Last Modified: 4 Feb 2026

    Summary: Security update for the Linux Kernel (Live Patch 6 for SLE 15 SP4)

    Details: This update for the Linux Kernel 5.14.21-150400_24_38 fixes several issues. The following security issues were fixed: - CVE-2023-23455: Fixed a denial of service inside atm_tc_enqueue in net/sched/sch_atm.c because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results) (bsc#1207189). - CVE-2023-31436: Fixed an out-of-bounds write in qfq_change_class() because lmax can exceed QFQ_MIN_LMAX (bsc#1210989). - CVE-2023-28466: Fixed race condition that could lead to use-after-free or NULL pointer dereference in do_tls_getsockopt in net/tls/tls_main.c (bsc#1210452).

    References: https://www.suse.com/support/update/announcement/2023/suse-su-20232743-1/, https://bugzilla.suse.com/1207189, https://bugzilla.suse.com/1210452, https://bugzilla.suse.com/1210989, https://www.suse.com/security/cve/CVE-2023-23455, https://www.suse.com/security/cve/CVE-2023-28466, https://www.suse.com/security/cve/CVE-2023-31436

    Affected packages

    Package

    Name: kernel-livepatch-SLE15-SP4_Update_6

    Purl: pkg:rpm/suse/kernel-livepatch-SLE15-SP4_Update_6&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -7-150400.2.3

    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-2023:2743-1 | CVE-DB