A Linux Kernel RT (Live Patch 7 for SLE 15 SP4) security update has been released for openSUSE Leap 15.4 and SUSE Linux Enterprise SP4.

SUSE-SU-2023:3041-1: important: Security update for the Linux Kernel RT (Live Patch 7 for SLE 15 SP4)

# Security update for the Linux Kernel RT (Live Patch 7 for SLE 15 SP4)

Announcement ID: SUSE-SU-2023:3041-1
Rating: important
References:

* #1212509

Cross-References:

* CVE-2023-35788

CVSS scores:

* 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 one vulnerability can now be installed.

## Description:

This update for the Linux Kernel 5.14.21-150400_15_28 fixes one issue.

The following security issue was 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).

## 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:

* SUSE Linux Enterprise Live Patching 15-SP4
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-3041=1 SUSE-SLE-
Module-Live-Patching-15-SP4-2023-3044=1

* openSUSE Leap 15.4
zypper in -t patch SUSE-2023-3044=1

## Package List:

* SUSE Linux Enterprise Live Patching 15-SP4 (x86_64)
* kernel-livepatch-SLE15-SP4-RT_Update_7-debugsource-4-150400.2.1
* kernel-livepatch-5_14_21-150400_15_28-rt-4-150400.2.1
* SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
* kernel-livepatch-SLE15-SP4_Update_12-debugsource-4-150400.2.1
* kernel-livepatch-5_14_21-150400_24_63-default-debuginfo-4-150400.2.1
* kernel-livepatch-5_14_21-150400_24_63-default-4-150400.2.1
* openSUSE Leap 15.4 (ppc64le s390x x86_64)
* kernel-livepatch-SLE15-SP4_Update_12-debugsource-4-150400.2.1
* kernel-livepatch-5_14_21-150400_24_63-default-debuginfo-4-150400.2.1
* kernel-livepatch-5_14_21-150400_24_63-default-4-150400.2.1

## References:

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