# Security update for the Linux Kernel (Live Patch 40 for SLE 15 SP2)

Announcement ID: SUSE-SU-2023:4802-1  
Rating: important  
References:

  * bsc#1215442
  * bsc#1215519

  
Cross-References:

  * CVE-2023-2163
  * CVE-2023-4622

  
CVSS scores:

  * CVE-2023-2163 ( SUSE ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2023-2163 ( NVD ):  10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
  * CVE-2023-4622 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-4622 ( NVD ):  7.0 CVSS:3.1/AV:L/AC:H/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 two vulnerabilities can now be installed.

## Description:

This update for the Linux Kernel 5.3.18-150200_24_163 fixes several issues.

The following security issues were fixed:

  * 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)

## 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-SP2-2023-4814=1 SUSE-SLE-
Module-Live-Patching-15-SP2-2023-4803=1 SUSE-SLE-Module-Live-
Patching-15-SP2-2023-4815=1 SUSE-SLE-Module-Live-Patching-15-SP2-2023-4802=1

## Package List:

  * SUSE Linux Enterprise Live Patching 15-SP2 (ppc64le s390x x86_64)
    * kernel-livepatch-5_3_18-150200_24_148-default-debuginfo-8-150200.2.1
    * kernel-livepatch-5_3_18-150200_24_160-default-4-150200.2.1
    * kernel-livepatch-5_3_18-150200_24_163-default-3-150200.2.1
    * kernel-livepatch-SLE15-SP2_Update_40-debugsource-3-150200.2.1
    * kernel-livepatch-SLE15-SP2_Update_39-debugsource-4-150200.2.1
    * kernel-livepatch-5_3_18-150200_24_163-default-debuginfo-3-150200.2.1
    * kernel-livepatch-5_3_18-150200_24_157-default-debuginfo-5-150200.2.1
    * kernel-livepatch-5_3_18-150200_24_148-default-8-150200.2.1
    * kernel-livepatch-5_3_18-150200_24_160-default-debuginfo-4-150200.2.1
    * kernel-livepatch-SLE15-SP2_Update_35-debugsource-8-150200.2.1
    * kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1
    * kernel-livepatch-SLE15-SP2_Update_38-debugsource-5-150200.2.1

## References:

  * https://www.suse.com/security/cve/CVE-2023-2163.html
  * https://www.suse.com/security/cve/CVE-2023-4622.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1215442
  * https://bugzilla.suse.com/show_bug.cgi?id=1215519

SUSE: 2023:4802-1 important: the Linux Kernel (Live Patch 40 for SLE 1

December 13, 2023
* bsc#1215442 * bsc#1215519 Cross-References: * CVE-2023-2163

Summary

## This update for the Linux Kernel 5.3.18-150200_24_163 fixes several issues. The following security issues were fixed: * 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) ## 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-SP2-2023-4814=1 SUSE-SLE- Module-Live-Patching-15-SP2-2023-4803=1 SUSE-SLE-Module-Live- Patching-15-SP2-2023-4815=1 SUSE-SLE-Module-Live-Patching-15-SP2-2023-4802=1 ## Package List: * SUSE Linux Enterprise Live Patching 15-SP2 (ppc64le s390x x86_64) * kernel-livepatch-5_3_18-150200_24_148-default-debuginfo-8-150200.2.1 * kernel-livepatch-5_3_18-150200_24_160-default-4-150200.2.1 * kernel-livepatch-5_3_18-150200_24_163-default-3-150200.2.1 * kernel-livepatch-SLE15-SP2_Update_40-debugsource-3-150200.2.1 * kernel-livepatch-SLE15-SP2_Update_39-debugsource-4-150200.2.1 * kernel-livepatch-5_3_18-150200_24_163-default-debuginfo-3-150200.2.1 * kernel-livepatch-5_3_18-150200_24_157-default-debuginfo-5-150200.2.1 * kernel-livepatch-5_3_18-150200_24_148-default-8-150200.2.1 * kernel-livepatch-5_3_18-150200_24_160-default-debuginfo-4-150200.2.1 * kernel-livepatch-SLE15-SP2_Update_35-debugsource-8-150200.2.1 * kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1 * kernel-livepatch-SLE15-SP2_Update_38-debugsource-5-150200.2.1

References

* bsc#1215442

* bsc#1215519

Cross-

* CVE-2023-2163

* CVE-2023-4622

CVSS scores:

* CVE-2023-2163 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

* CVE-2023-2163 ( NVD ): 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

* CVE-2023-4622 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-4622 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/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 two vulnerabilities can now be installed.

##

* https://www.suse.com/security/cve/CVE-2023-2163.html

* https://www.suse.com/security/cve/CVE-2023-4622.html

* https://bugzilla.suse.com/show_bug.cgi?id=1215442

* https://bugzilla.suse.com/show_bug.cgi?id=1215519

Severity
Announcement ID: SUSE-SU-2023:4802-1
Rating: important

Related News

News

Powered By

Footer Logo

Linux Security - Your source for Top Linux News, Advisories, HowTo's and Feature Release.

Powered By

Footer Logo