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