A Linux Kernel (Live Patch 12 for SLE 15 SP4) security update has been released for openSUSE Leap 15.4 and SUSE Linux Enterprise.

SUSE-SU-2023:3648-1: important: Security update for the Linux Kernel (Live Patch 12 for SLE 15 SP4)

# Security update for the Linux Kernel (Live Patch 12 for SLE 15 SP4)

Announcement ID: SUSE-SU-2023:3648-1
Rating: important
References:

* #1208839
* #1211187
* #1211395
* #1212849
* #1213063

Cross-References:

* CVE-2023-1077
* CVE-2023-2156
* CVE-2023-3090
* CVE-2023-32233
* CVE-2023-35001

CVSS scores:

* CVE-2023-1077 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-1077 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-2156 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-2156 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-3090 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-3090 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-32233 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-32233 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-35001 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-35001 ( 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 five vulnerabilities can now be installed.

## Description:

This update for the Linux Kernel 5.14.21-150400_24_63 fixes several issues.

The following security issues were fixed:

* CVE-2023-32233: Fixed a use-after-free in Netfilter nf_tables when
processing batch requests (bsc#1211187).
* CVE-2023-2156: Fixed a flaw in the networking subsystem within the handling
of the RPL protocol (bsc#1211395).
* CVE-2023-35001: Fixed an out-of-bounds memory access flaw in nft_byteorder
that could allow a local attacker to escalate their privilege (bsc#1213063).
* CVE-2023-1077: Fixed a type confusion in pick_next_rt_entity(), that could
cause memory corruption (bsc#1208839).
* CVE-2023-3090: Fixed a heap out-of-bounds write in the ipvlan network driver
(bsc#1212849).

## 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-2023-3648=1

* SUSE Linux Enterprise Live Patching 15-SP4
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-3648=1

## Package List:

* openSUSE Leap 15.4 (ppc64le s390x x86_64)
* kernel-livepatch-SLE15-SP4_Update_12-debugsource-5-150400.2.1
* kernel-livepatch-5_14_21-150400_24_63-default-debuginfo-5-150400.2.1
* kernel-livepatch-5_14_21-150400_24_63-default-5-150400.2.1
* SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
* kernel-livepatch-SLE15-SP4_Update_12-debugsource-5-150400.2.1
* kernel-livepatch-5_14_21-150400_24_63-default-debuginfo-5-150400.2.1
* kernel-livepatch-5_14_21-150400_24_63-default-5-150400.2.1

## References:

* https://www.suse.com/security/cve/CVE-2023-1077.html
* https://www.suse.com/security/cve/CVE-2023-2156.html
* https://www.suse.com/security/cve/CVE-2023-3090.html
* https://www.suse.com/security/cve/CVE-2023-32233.html
* https://www.suse.com/security/cve/CVE-2023-35001.html
* https://bugzilla.suse.com/show_bug.cgi?id=1208839
* https://bugzilla.suse.com/show_bug.cgi?id=1211187
* https://bugzilla.suse.com/show_bug.cgi?id=1211395
* https://bugzilla.suse.com/show_bug.cgi?id=1212849
* https://bugzilla.suse.com/show_bug.cgi?id=1213063