Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP5)

Announcement ID:	SUSE-SU-2024:0655-1
Rating:	important
References:	bsc#1215300 bsc#1217116 bsc#1218733
Cross-References:	CVE-2023-39198 CVE-2023-4921 CVE-2023-51780
CVSS scores:	CVE-2023-39198 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2023-39198 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2023-4921 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-4921 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-51780 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-51780 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:	openSUSE Leap 15.5 SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise Live Patching 12-SP5 SUSE Linux Enterprise Live Patching 15-SP5 SUSE Linux Enterprise Micro 5.5 SUSE Linux Enterprise Real Time 15 SP5 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves three vulnerabilities can now be installed.

Description:

This update for the Linux Kernel 5.14.21-150500_11 fixes several issues.

The following security issues were fixed:

• CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalation (bsc#1215300).
• CVE-2023-39198: Fixed a race condition leading to a use-after-free in qxl_mode_dumb_create() (bsc#1217116).
• CVE-2023-51780: Fixed a use-after-free in do_vcc_ioctl in net/atm/ioctl.c, because of a vcc_recvmsg race condition (bsc#1218733).

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-SP5-2024-655=1 SUSE-SLE-Live-Patching-12-SP5-2024-652=1 SUSE-SLE-Live-Patching-12-SP5-2024-653=1
• openSUSE Leap 15.5
  zypper in -t patch SUSE-2024-654=1
• SUSE Linux Enterprise Live Patching 15-SP5
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2024-654=1

Package List:

• SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)
  • kgraft-patch-4_12_14-122_153-default-10-2.1
  • kgraft-patch-4_12_14-122_159-default-9-2.1
  • kgraft-patch-4_12_14-122_156-default-10-2.1
• openSUSE Leap 15.5 (x86_64)
  • kernel-livepatch-5_14_21-150500_11-rt-8-150500.3.1
  • kernel-livepatch-5_14_21-150500_11-rt-debuginfo-8-150500.3.1
  • kernel-livepatch-SLE15-SP5-RT_Update_0-debugsource-8-150500.3.1
• SUSE Linux Enterprise Live Patching 15-SP5 (x86_64)
  • kernel-livepatch-5_14_21-150500_11-rt-8-150500.3.1
  • kernel-livepatch-5_14_21-150500_11-rt-debuginfo-8-150500.3.1
  • kernel-livepatch-SLE15-SP5-RT_Update_0-debugsource-8-150500.3.1

References:

• https://www.suse.com/security/cve/CVE-2023-39198.html
• https://www.suse.com/security/cve/CVE-2023-4921.html
• https://www.suse.com/security/cve/CVE-2023-51780.html
• https://bugzilla.suse.com/show_bug.cgi?id=1215300
• https://bugzilla.suse.com/show_bug.cgi?id=1217116
• https://bugzilla.suse.com/show_bug.cgi?id=1218733