SUSE-SU-2023:3668-1: important: Security update for the Linux Kernel RT (Live Patch 6 for SLE 15 SP4)

Tue Sep 19 16:31:37 UTC 2023

# Security update for the Linux Kernel RT (Live Patch 6 for SLE 15 SP4)

Announcement ID: SUSE-SU-2023:3668-1  
Rating: important  
References:

  * #1208839
  * #1210630
  * #1211187
  * #1211395
  * #1212849
  * #1213063

Cross-References:

  * CVE-2023-1077
  * CVE-2023-2156
  * CVE-2023-2176
  * 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-2023-2176 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-2176 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:

  * 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 six vulnerabilities can now be installed.

## Description:

This update for the Linux Kernel 5.14.21-150400_15_23 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-2023-2176: Fixed an out-of-boundary read in compare_netdev_and_ip in
    drivers/infiniband/core/cma.c in RDMA (bsc#1210630).
  * 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:

  * SUSE Linux Enterprise Live Patching 15-SP4  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-3668=1 SUSE-SLE-
Module-Live-Patching-15-SP4-2023-3674=1

## Package List:

  * SUSE Linux Enterprise Live Patching 15-SP4 (x86_64)
    * kernel-livepatch-5_14_21-150400_15_18-rt-debuginfo-6-150400.2.1
    * kernel-livepatch-5_14_21-150400_15_23-rt-5-150400.2.1
    * kernel-livepatch-5_14_21-150400_15_18-rt-6-150400.2.1
    * kernel-livepatch-SLE15-SP4-RT_Update_6-debugsource-5-150400.2.1
    * kernel-livepatch-SLE15-SP4-RT_Update_5-debugsource-6-150400.2.1
    * kernel-livepatch-5_14_21-150400_15_23-rt-debuginfo-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-2023-2176.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=1210630
  * 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

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