A Linux Kernel (Live Patch 2 for SLE 15 SP4) security update has been released for openSUSE Leap 15.4 and SUSE Linux Enterprise 15 SP4/Micro 5.3/5.4.

SUSE-SU-2023:3079-1: important: Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP4)

# Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP4)

Announcement ID: SUSE-SU-2023:3079-1
Rating: important
References:

* #1210566
* #1210987
* #1212509

Cross-References:

* CVE-2023-2002
* CVE-2023-2235
* CVE-2023-35788

CVSS scores:

* CVE-2023-2002 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-2002 ( NVD ): 6.8 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
* CVE-2023-2235 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-2235 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-35788 ( SUSE ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
* CVE-2023-35788 ( 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 three vulnerabilities can now be installed.

## Description:

This update for the Linux Kernel 5.14.21-150400_24_18 fixes several issues.

The following security issues were fixed:

* CVE-2023-35788: Fixed an out-of-bounds write in the flower classifier code
via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets in fl_set_geneve_opt in
net/sched/cls_flower.c (bsc#1212509).
* CVE-2023-2235: Fixed an use-after-free in the Performance Events system can
be exploited to achieve local privilege escalation (bsc#1210987).
* CVE-2023-2002: Fixed a flaw that allowed an attacker to unauthorized
execution of management commands, compromising the confidentiality,
integrity, and availability of Bluetooth communication (bsc#1210566).

## Patch Instructions:

To install this SUSE Important 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-2023-3079=1 SUSE-2023-3080=1

* SUSE Linux Enterprise Live Patching 15-SP4
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-3079=1 SUSE-SLE-
Module-Live-Patching-15-SP4-2023-3080=1

## Package List:

* openSUSE Leap 15.4 (ppc64le s390x x86_64)
* kernel-livepatch-5_14_21-150400_24_18-default-debuginfo-13-150400.2.2
* kernel-livepatch-5_14_21-150400_24_38-default-debuginfo-8-150400.2.2
* kernel-livepatch-5_14_21-150400_24_18-default-13-150400.2.2
* kernel-livepatch-5_14_21-150400_24_38-default-8-150400.2.2
* kernel-livepatch-SLE15-SP4_Update_6-debugsource-8-150400.2.2
* kernel-livepatch-SLE15-SP4_Update_2-debugsource-13-150400.2.2
* SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
* kernel-livepatch-5_14_21-150400_24_18-default-debuginfo-13-150400.2.2
* kernel-livepatch-5_14_21-150400_24_38-default-debuginfo-8-150400.2.2
* kernel-livepatch-5_14_21-150400_24_18-default-13-150400.2.2
* kernel-livepatch-5_14_21-150400_24_38-default-8-150400.2.2
* kernel-livepatch-SLE15-SP4_Update_6-debugsource-8-150400.2.2
* kernel-livepatch-SLE15-SP4_Update_2-debugsource-13-150400.2.2

## References:

* https://www.suse.com/security/cve/CVE-2023-2002.html
* https://www.suse.com/security/cve/CVE-2023-2235.html
* https://www.suse.com/security/cve/CVE-2023-35788.html
* https://bugzilla.suse.com/show_bug.cgi?id=1210566
* https://bugzilla.suse.com/show_bug.cgi?id=1210987
* https://bugzilla.suse.com/show_bug.cgi?id=1212509