# Security update for the Linux Kernel (Live Patch 45 for SLE 15 SP2)

Announcement ID: SUSE-SU-2024:3848-1  
Release Date: 2024-10-31T10:33:39Z  
Rating: important  
References:

  * bsc#1225309
  * bsc#1225311
  * bsc#1225819
  * bsc#1227471
  * bsc#1227472

  
Cross-References:

  * CVE-2021-47598
  * CVE-2021-47600
  * CVE-2023-52752
  * CVE-2024-35862
  * CVE-2024-35864

  
CVSS scores:

  * CVE-2021-47598 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2021-47598 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2021-47600 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2021-47600 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * 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-2024-35862 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-35864 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise High Performance Computing 15 SP2
  * SUSE Linux Enterprise Live Patching 15-SP2
  * SUSE Linux Enterprise Server 15 SP2
  * SUSE Linux Enterprise Server for SAP Applications 15 SP2

  
  
An update that solves five vulnerabilities can now be installed.

## Description:

This update for the Linux Kernel 5.3.18-150200_24_178 fixes several issues.

The following security issues were fixed:

  * CVE-2021-47600: dm btree remove: fix use after free in rebalance_children()
    (bsc#1227472).
  * CVE-2021-47598: sch_cake: do not call cake_destroy() from cake_init()
    (bsc#1227471).
  * CVE-2023-52752: smb: client: fix use-after-free bug in
    cifs_debug_data_proc_show() (bsc#1225819).
  * CVE-2024-35862: Fixed potential UAF in smb2_is_network_name_deleted()
    (bsc#1225311).
  * CVE-2024-35864: Fixed potential UAF in smb2_is_valid_lease_break()
    (bsc#1225309).

## 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:

  * SUSE Linux Enterprise Live Patching 15-SP2  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2024-3848=1

## Package List:

  * SUSE Linux Enterprise Live Patching 15-SP2 (ppc64le s390x x86_64)
    * kernel-livepatch-5_3_18-150200_24_178-default-debuginfo-11-150200.2.1
    * kernel-livepatch-SLE15-SP2_Update_45-debugsource-11-150200.2.1
    * kernel-livepatch-5_3_18-150200_24_178-default-11-150200.2.1

## References:

  * https://www.suse.com/security/cve/CVE-2021-47598.html
  * https://www.suse.com/security/cve/CVE-2021-47600.html
  * https://www.suse.com/security/cve/CVE-2023-52752.html
  * https://www.suse.com/security/cve/CVE-2024-35862.html
  * https://www.suse.com/security/cve/CVE-2024-35864.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1225309
  * https://bugzilla.suse.com/show_bug.cgi?id=1225311
  * https://bugzilla.suse.com/show_bug.cgi?id=1225819
  * https://bugzilla.suse.com/show_bug.cgi?id=1227471
  * https://bugzilla.suse.com/show_bug.cgi?id=1227472