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SUSE: 2023:4301-1 Important: Kernel Patch Fixes Critical Issues

suse
Calendar Grey October 31, 2023
Dist Suse Esm H88
Key Linux Kernel update tackles significant security flaws in SUSE platforms, promoting better protection and performance.
* bsc#1215118 * bsc#1215440 Cross-References: * CVE-2023-4147

Summary

## This update for the Linux Kernel 5.14.21-150400_24_81 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 15.4 zypper in -t patch SUSE-2023-4301=1 * SUSE Linux Enterprise Live Patching 15-SP4 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-4301=1 ## Package List: * openSUSE Leap 15.4 (ppc64le s390x x86_64)

Topics%20covered

Topics Covered

security advisory critical local privilege escalation important SUSE use-after-free Linux Kernel

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 15.4

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise Live Patching 15-SP4

* SUSE Linux Enterprise Micro 5.3

* SUSE Linux Enterprise Micro 5.4

* SUSE Linux Enterprise Real Time 15 SP4

* SUSE Linux Enterprise Server 15 SP4

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

An update that solves two vulnerabilities can now be installed.

##

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2023:4301-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical local privilege escalation important SUSE use-after-free Linux Kernel

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