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SUSE: 2023:4817-1 important: kernel live patch fixes for SP3

suse
Calendar Grey December 13, 2023
Dist Suse Esm H88
Unveil the most recent Linux Kernel patch addressing security flaws in SUSE environments that may lead to elevated privileges.
* bsc#1215097 * bsc#1215442 * bsc#1215519 Cross-References:

Summary

## This update for the Linux Kernel 5.3.18-150300_59_124 fixes several issues. The following security issues were fixed: * CVE-2023-3777: Fixed a use-after-free vulnerability in netfilter: nf_tables component can be exploited to achieve local privilege escalation. (bsc#1215097) * 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

Topics%20covered

Topics Covered

security advisory privilege escalation kernel patch local exploit SUSE important update

References

* bsc#1215097

* bsc#1215442

* bsc#1215519

Cross-

* CVE-2023-2163

* CVE-2023-3777

* 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-2023-3777 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-3777 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* 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:

* openSUSE Leap 15.3

* SUSE Linux Enterprise High Performance Computing 15 SP3

* SUSE Linux Enterprise Live Patching 15-SP3

* SUSE Linux Enterprise Micro 5.1

* SUSE Linux Enterprise Micro 5.2

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2023:4817-1
Rating: important

Topics%20covered

Topics Covered

security advisory privilege escalation kernel patch local exploit SUSE important update

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