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SUSE: 2023:4165-1 Important Update: Kernel RT Live Patch for SLE 15 SP4

suse
Calendar Grey October 24, 2023
Dist Suse Esm H88
Essential patch released for the Linux Kernel RT correcting use-after-free vulnerabilities and privilege escalation risks in SLE 15 SP4.
* bsc#1215118 * bsc#1215440 Cross-References: * CVE-2023-4147

Summary

## This update for the Linux Kernel 5.14.21-150400_15_46 fixes several issues. The following security issues were fixed: * CVE-2023-4147: Fixed use-after-free in nf_tables_newrule (bsc#1215118). * 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: * openSUSE Leap 15.5 zypper in -t patch SUSE-2023-4165=1 * SUSE Linux Enterprise Live Patching 15-SP5 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2023-4165=1 * SUSE Linux Enterprise Live Patching 15-SP4

Topics%20covered

Topics Covered

security advisory privilege escalation important SUSE use-after-free

References

* bsc#1215118

* bsc#1215440

Cross-

* CVE-2023-4147

* CVE-2023-4623

CVSS scores:

* CVE-2023-4147 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-4147 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* 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:

* openSUSE Leap 15.5

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise High Performance Computing 15 SP5

* SUSE Linux Enterprise Live Patching 15-SP4

* SUSE Linux Enterprise Live Patching 15-SP5

* SUSE Linux Enterprise Micro 5.3

* SUSE Linux Enterprise Micro 5.4

* SUSE Linux Enterprise Micro 5.5

* SUSE Linux Enterprise Real Time 15 SP4

* SUSE Linux Enterprise Real Time 15 SP5

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2023:4165-1
Rating: important

Topics%20covered

Topics Covered

security advisory privilege escalation important SUSE use-after-free

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