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SUSE: 2023:4244-1 Important: Kernel Live Patch 35 Local Escalation Issue

suse
Calendar Grey October 30, 2023
Dist Suse Esm H88
Important security update for SUSE Linux Kernel addressing local privilege escalation vulnerability in Live Patch 35 for SLE 15 SP2.
* bsc#1215440 Cross-References: * CVE-2023-4623

Summary

## This update for the Linux Kernel 4.12.14-150100_197_126 fixes one issue. The following security issue was fixed: * CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215440). ## 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-SP2-2023-4244=1 * SUSE Linux Enterprise Live Patching 15-SP1 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2023-4253=1 SUSE-SLE- Module-Live-Patching-15-SP1-2023-4249=1 SUSE-SLE-Module-Live-

Topics%20covered

Topics Covered

security advisory kernel patch access issue local escalation SUSE Linux important update CVE-2023-4623

References

* bsc#1215440

Cross-

* CVE-2023-4623

CVSS scores:

* CVE-2023-4623 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-4623 ( NVD ): 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 12 SP5

* SUSE Linux Enterprise High Performance Computing 15 SP1

* SUSE Linux Enterprise High Performance Computing 15 SP2

* SUSE Linux Enterprise Live Patching 15-SP2

* SUSE Linux Enterprise Live Patching 15-SP1

* SUSE Linux Enterprise Live Patching 12-SP5

* SUSE Linux Enterprise Server 12 SP5

* SUSE Linux Enterprise Server 15 SP1

* SUSE Linux Enterprise Server 15 SP2

* SUSE Linux Enterprise Server for SAP Applications 12 SP5

* SUSE Linux Enterprise Server for SAP Applications 15 SP1

* SUSE Linux Enterprise Server for SAP Applications 15 SP2

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2023:4244-1
Rating: important

Topics%20covered

Topics Covered

security advisory kernel patch access issue local escalation SUSE Linux important update CVE-2023-4623

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