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SUSE 15 SP2: 2023:4802-1 critical: kernel privilege escalation

suse
Calendar Grey December 13, 2023
Dist Suse Esm H88
This communication outlines significant revisions to the SUSE Linux Kernel, tackling vital concerns affecting system security and stability.
* 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

Topics%20covered

Topics Covered

security advisory kernel update critical local privilege escalation arbitrary code execution SUSE

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

Severity
important
Lowest
Low
Medium
High
Critical

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

Topics%20covered

Topics Covered

security advisory kernel update critical local privilege escalation arbitrary code execution SUSE

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