# Security update for the Linux Kernel (Live Patch 1 for SLE 15 SP6)

Announcement ID: SUSE-SU-2024:4208-1  
Release Date: 2024-12-05T15:33:56Z  
Rating: important  
References:

  * bsc#1225733
  * bsc#1225739
  * bsc#1225819
  * bsc#1228786
  * bsc#1229273
  * bsc#1229553
  * bsc#1231419

  
Cross-References:

  * CVE-2023-52752
  * CVE-2024-35949
  * CVE-2024-36899
  * CVE-2024-36904
  * CVE-2024-40954
  * CVE-2024-42133
  * CVE-2024-43861

  
CVSS scores:

  * CVE-2023-52752 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-52752 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-35949 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-36899 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-36904 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-40954 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-40954 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-42133 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2024-42133 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-43861 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2024-43861 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Live Patching 15-SP6
  * SUSE Linux Enterprise Real Time 15 SP6
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6

  
  
An update that solves seven vulnerabilities can now be installed.

## Description:

This update for the Linux Kernel 6.4.0-150600_23_7 fixes several issues.

The following security issues were fixed:

  * CVE-2024-36904: tcp: Use refcount_inc_not_zero() in tcp_twsk_unique()
    (bsc#1225733).
  * CVE-2024-43861: Fix memory leak for not ip packets (bsc#1229553).
  * CVE-2024-42133: Bluetooth: Ignore too large handle values in BIG
    (bsc#1228511).
  * CVE-2024-35949: btrfs: make sure that WRITTEN is set on all metadata blocks
    (bsc#1229273).
  * CVE-2023-52752: smb: client: fix use-after-free bug in
    cifs_debug_data_proc_show() (bsc#1225819).
  * CVE-2024-36899: gpiolib: cdev: Fix use after free in lineinfo_changed_notify
    (bsc#1231353).
  * CVE-2024-36899: gpiolib: cdev: Fix use after free in lineinfo_changed_notify
    (bsc#1225739).
  * CVE-2024-40954: net: do not leave a dangling sk pointer, when socket
    creation fails (bsc#1227808)

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2024-4208=1

  * SUSE Linux Enterprise Live Patching 15-SP6  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2024-4208=1

## Package List:

  * openSUSE Leap 15.6 (ppc64le s390x x86_64)
    * kernel-livepatch-6_4_0-150600_23_7-default-5-150600.13.6.1
    * kernel-livepatch-SLE15-SP6_Update_1-debugsource-5-150600.13.6.1
    * kernel-livepatch-6_4_0-150600_23_7-default-debuginfo-5-150600.13.6.1
  * SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x x86_64)
    * kernel-livepatch-6_4_0-150600_23_7-default-5-150600.13.6.1
    * kernel-livepatch-SLE15-SP6_Update_1-debugsource-5-150600.13.6.1
    * kernel-livepatch-6_4_0-150600_23_7-default-debuginfo-5-150600.13.6.1

## References:

  * https://www.suse.com/security/cve/CVE-2023-52752.html
  * https://www.suse.com/security/cve/CVE-2024-35949.html
  * https://www.suse.com/security/cve/CVE-2024-36899.html
  * https://www.suse.com/security/cve/CVE-2024-36904.html
  * https://www.suse.com/security/cve/CVE-2024-40954.html
  * https://www.suse.com/security/cve/CVE-2024-42133.html
  * https://www.suse.com/security/cve/CVE-2024-43861.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1225733
  * https://bugzilla.suse.com/show_bug.cgi?id=1225739
  * https://bugzilla.suse.com/show_bug.cgi?id=1225819
  * https://bugzilla.suse.com/show_bug.cgi?id=1228786
  * https://bugzilla.suse.com/show_bug.cgi?id=1229273
  * https://bugzilla.suse.com/show_bug.cgi?id=1229553
  * https://bugzilla.suse.com/show_bug.cgi?id=1231419