Security update for the Linux Kernel (Live Patch 45 for SLE 12 SP5)

Announcement ID: SUSE-SU-2023:3749-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2023-1829 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-1829 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-3609 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-3609 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-3776 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-3776 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-3812 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-3812 ( 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 12 SP5
  • SUSE Linux Enterprise Live Patching 12-SP5
  • SUSE Linux Enterprise Server 12 SP5
  • SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves four vulnerabilities can now be installed.

Description:

This update for the Linux Kernel 4.12.14-122_165 fixes several issues.

The following security issues were fixed:

  • CVE-2023-3776: Fixed improper refcount update in cls_fw leads to use-after-free (bsc#1215119).
  • CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210619).
  • CVE-2023-3609: Fixed reference counter leak leading to overflow in net/sched (bsc#1213587).
  • CVE-2023-3812: Fixed an out-of-bounds memory access flaw in the TUN/TAP device driver functionality that could allow a local user to crash or potentially escalate their privileges on the system (bsc#1213706).

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 12-SP5
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2023-3749=1 SUSE-SLE-Live-Patching-12-SP5-2023-3744=1 SUSE-SLE-Live-Patching-12-SP5-2023-3740=1 SUSE-SLE-Live-Patching-12-SP5-2023-3746=1 SUSE-SLE-Live-Patching-12-SP5-2023-3754=1 SUSE-SLE-Live-Patching-12-SP5-2023-3741=1 SUSE-SLE-Live-Patching-12-SP5-2023-3743=1 SUSE-SLE-Live-Patching-12-SP5-2023-3750=1 SUSE-SLE-Live-Patching-12-SP5-2023-3742=1 SUSE-SLE-Live-Patching-12-SP5-2023-3745=1 SUSE-SLE-Live-Patching-12-SP5-2023-3747=1

Package List:

  • SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)
    • kgraft-patch-4_12_14-122_136-default-11-2.2
    • kgraft-patch-4_12_14-122_150-default-8-2.2
    • kgraft-patch-4_12_14-122_133-default-12-2.2
    • kgraft-patch-4_12_14-122_144-default-9-2.2
    • kgraft-patch-4_12_14-122_153-default-6-2.1
    • kgraft-patch-4_12_14-122_159-default-5-2.1
    • kgraft-patch-4_12_14-122_139-default-10-2.2
    • kgraft-patch-4_12_14-122_156-default-6-2.1
    • kgraft-patch-4_12_14-122_165-default-3-2.1
    • kgraft-patch-4_12_14-122_147-default-8-2.2
    • kgraft-patch-4_12_14-122_162-default-4-2.1

References: