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openSUSE 15.5: 2023:4775-1 Important Kernel RT Patch for Critical Threats

opensuse
Calendar Grey December 13, 2023
Dist Opensuse Esm H88
Discover the key release notes for Linux Kernel 5.14.21, which fix critical vulnerabilities and bolster system security effectively, urging swift upgrades.
This update for the Linux Kernel 5.14.21-150500_13_18 fixes several issues

Description

This update for the Linux Kernel 5.14.21-150500_13_18 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-2023-5345: Fixed an use-after-free vulnerability in the fs/smb/client

component which could be exploited to achieve local privilege escalation.

(bsc#1215971)

* 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)

Topics%20covered

Topics Covered

security advisory kernel update local privilege escalation kernel security critical threat openSUSE live patch

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-SP4-2023-4775=1

* openSUSE Leap 15.5

zypper in -t patch SUSE-2023-4779=1

* SUSE Linux Enterprise Live Patching 15-SP5

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2023-4779=1

Package List

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

* kernel-livepatch-SLE15-SP4-RT_Update_13-debugsource-3-150400.2.1

* kernel-livepatch-5_14_21-150400_15_53-rt-3-150400.2.1

* kernel-livepatch-5_14_21-150400_15_53-rt-debuginfo-3-150400.2.1

* openSUSE Leap 15.5 (x86_64)

* kernel-livepatch-5_14_21-150500_13_18-rt-3-150500.2.1

* kernel-livepatch-5_14_21-150500_13_18-rt-debuginfo-3-150500.2.1

* kernel-livepatch-SLE15-SP5-RT_Update_5-debugsource-3-150500.2.1

* SUSE Linux Enterprise Live Patching 15-SP5 (x86_64)

* kernel-livepatch-5_14_21-150500_13_18-rt-3-150500.2.1

* kernel-livepatch-5_14_21-150500_13_18-rt-debuginfo-3-150500.2.1

* kernel-livepatch-SLE15-SP5-RT_Update_5-debugsource-3-150500.2.1

References

* bsc#1215097

* bsc#1215442

* bsc#1215519

* bsc#1215971

## References:

* https://www.suse.com/security/cve/CVE-2023-2163.html

* https://www.suse.com/security/cve/CVE-2023-3777.html

* https://www.suse.com/security/cve/CVE-2023-4622.html

* https://www.suse.com/security/cve/CVE-2023-5345.html

* https://bugzilla.suse.com/show_bug.cgi?id=1215097

* https://bugzilla.suse.com/show_bug.cgi?id=1215442

* https://bugzilla.suse.com/show_bug.cgi?id=1215519

* https://bugzilla.suse.com/show_bug.cgi?id=1215971

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2023:4775-1
Rating: important

Topics%20covered

Topics Covered

security advisory kernel update local privilege escalation kernel security critical threat openSUSE live patch

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