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openSUSE 15 SP4: Security Advisory 2023:4166-1 Critical: RT Kernel Update

opensuse
Calendar Grey October 24, 2023
Dist Opensuse Esm H88
Four significant vulnerabilities addressed in the openSUSE Linux Kernel RT security advisory. Examine the patch specifications and affected products here.
This update for the Linux Kernel 5.14.21-150400_15_18 fixes several issues

Description

This update for the Linux Kernel 5.14.21-150400_15_18 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).

* CVE-2023-4004: Fixed improper element removal netfilter nft_set_pipapo

(bsc#1214812).

* CVE-2023-3390: Fixed an use-after-free vulnerability in the netfilter

subsystem in net/netfilter/nf_tables_api.c that could allow a local attacker

with user access to cause a privilege escalation issue (bsc#1212934).

Topics%20covered

Topics Covered

security advisory critical issue local privilege escalation kernel patch openSUSE RT update

Patch

## 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-SP4

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-4171=1 SUSE-SLE-

Module-Live-Patching-15-SP4-2023-4172=1 SUSE-SLE-Module-Live-

Patching-15-SP4-2023-4173=1 SUSE-SLE-Module-Live-Patching-15-SP4-2023-4169=1

SUSE-SLE-Module-Live-Patching-15-SP4-2023-4170=1

* openSUSE Leap 15.5

zypper in -t patch SUSE-2023-4166=1

* SUSE Linux Enterprise Live Patching 15-SP5

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2023-4166=1

Package List

* SUSE Linux Enterprise Live Patching 15-SP4 (x86_64)

* kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo-4-150400.2.1

* kernel-livepatch-5_14_21-150400_15_23-rt-debuginfo-7-150400.2.1

* kernel-livepatch-SLE15-SP4-RT_Update_6-debugsource-7-150400.2.1

* kernel-livepatch-5_14_21-150400_15_18-rt-8-150400.2.1

* kernel-livepatch-SLE15-SP4-RT_Update_5-debugsource-8-150400.2.1

* kernel-livepatch-5_14_21-150400_15_40-rt-4-150400.2.1

* kernel-livepatch-5_14_21-150400_15_23-rt-7-150400.2.1

* kernel-livepatch-SLE15-SP4-RT_Update_9-debugsource-4-150400.2.1

* kernel-livepatch-SLE15-SP4-RT_Update_8-debugsource-4-150400.2.1

* kernel-livepatch-5_14_21-150400_15_28-rt-7-150400.2.1

* kernel-livepatch-5_14_21-150400_15_37-rt-debuginfo-4-150400.2.1

* kernel-livepatch-5_14_21-150400_15_18-rt-debuginfo-8-150400.2.1

* kernel-livepatch-SLE15-SP4-RT_Update_7-debugsource-7-150400.2.1

* kernel-livepatch-5_14_21-150400_15_37-rt-4-150400.2.1

* openSUSE Leap 15.5 (x86_64)

* kernel-livepatch-5_14_21-150500_11-rt-5-150500.12.2

*...

Read the Full Advisory

References

* bsc#1212934

* bsc#1214812

* bsc#1215118

* bsc#1215440

## References:

* https://www.suse.com/security/cve/CVE-2023-3390.html

* https://www.suse.com/security/cve/CVE-2023-4004.html

* https://www.suse.com/security/cve/CVE-2023-4147.html

* https://www.suse.com/security/cve/CVE-2023-4623.html

* https://bugzilla.suse.com/show_bug.cgi?id=1212934

* https://bugzilla.suse.com/show_bug.cgi?id=1214812

* https://bugzilla.suse.com/show_bug.cgi?id=1215118

* https://bugzilla.suse.com/show_bug.cgi?id=1215440

Severity
critical
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2023:4166-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical issue local privilege escalation kernel patch openSUSE RT update

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