Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2023:4347-1
Rating:	important
References:	bsc#1208995 bsc#1210169 bsc#1210778 bsc#1212703 bsc#1214233 bsc#1214380 bsc#1214386 bsc#1215115 bsc#1215117 bsc#1215221 bsc#1215275 bsc#1215299 bsc#1215467 bsc#1215745 bsc#1215858 bsc#1215860 bsc#1215861 bsc#1216046 bsc#1216051
Cross-References:	CVE-2020-36766 CVE-2023-1192 CVE-2023-1206 CVE-2023-1859 CVE-2023-31085 CVE-2023-34324 CVE-2023-39189 CVE-2023-39192 CVE-2023-39193 CVE-2023-39194 CVE-2023-40283 CVE-2023-42754 CVE-2023-45862 CVE-2023-4622 CVE-2023-4623 CVE-2023-4881 CVE-2023-4921
CVSS scores:	CVE-2020-36766 ( SUSE ): 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N CVE-2020-36766 ( NVD ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVE-2023-1192 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2023-1192 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2023-1206 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2023-1206 ( NVD ): 5.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2023-1859 ( SUSE ): 1.9 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L CVE-2023-1859 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2023-31085 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2023-31085 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2023-34324 ( SUSE ): 5.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2023-34324 ( NVD ): 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVE-2023-39189 ( SUSE ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N CVE-2023-39189 ( NVD ): 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H CVE-2023-39192 ( SUSE ): 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H CVE-2023-39192 ( NVD ): 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H CVE-2023-39193 ( SUSE ): 5.1 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L CVE-2023-39193 ( NVD ): 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H CVE-2023-39194 ( SUSE ): 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N CVE-2023-39194 ( NVD ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N CVE-2023-40283 ( SUSE ): 5.7 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVE-2023-40283 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-42754 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2023-42754 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2023-45862 ( SUSE ): 6.4 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2023-45862 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2023-4622 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-4622 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-4623 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-4623 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2023-4881 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L CVE-2023-4881 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/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
Affected Products:	openSUSE Leap 15.4 openSUSE Leap 15.5 SUSE CaaS Platform 4.0 SUSE Linux Enterprise High Availability Extension 15 SP1 SUSE Linux Enterprise High Performance Computing 15 SP1 SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1 SUSE Linux Enterprise Live Patching 15-SP1 SUSE Linux Enterprise Server 15 SP1 SUSE Linux Enterprise Server 15 SP1 Business Critical Linux 15-SP1 SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 SUSE Linux Enterprise Server for SAP Applications 15 SP1 SUSE Manager Proxy 4.0 SUSE Manager Retail Branch Server 4.0 SUSE Manager Server 4.0

An update that solves 17 vulnerabilities and has two security fixes can now be installed.

Description:

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-31085: Fixed a divide-by-zero error in do_div(sz,mtd->erasesize) that could cause a local DoS. (bsc#1210778)
• CVE-2023-45862: Fixed an issue in the ENE UB6250 reader driver whwere an object could potentially extend beyond the end of an allocation causing. (bsc#1216051)
• CVE-2023-34324: Fixed a possible deadlock in Linux kernel event handling. (bsc#1215745).
• CVE-2023-39189: Fixed a flaw in the Netfilter subsystem that could allow a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (bsc#1216046)
• CVE-2023-39194: Fixed an out of bounds read in the XFRM subsystem (bsc#1215861).
• CVE-2023-39193: Fixed an out of bounds read in the xtables subsystem (bsc#1215860).
• CVE-2023-39192: Fixed an out of bounds read in the netfilter (bsc#1215858).
• CVE-2023-42754: Fixed a NULL pointer dereference in the IPv4 stack that could lead to denial of service (bsc#1215467).
• CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table which could be exploited by network adjacent attackers, increasing CPU usage by 95% (bsc#1212703).
• CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalation (bsc#1215275).
• CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215117).
• CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115).
• CVE-2020-36766: Fixed a potential information leak in in the CEC driver (bsc#1215299).
• CVE-2023-1859: Fixed a use-after-free flaw in Xen transport for 9pfs which could be exploited to crash the system (bsc#1210169).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-40283: Fixed use-after-free in l2cap_sock_ready_cb (bsc#1214233).
• CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995).

The following non-security bugs were fixed:

• check-for-config-changes: ignore BUILTIN_RETURN_ADDRESS_STRIPS_PAC (bsc#1214380). gcc7 on SLE 15 does not support this while later gcc does.
• mkspec: Allow unsupported KMPs (bsc#1214386)
• old-flavors: Drop 2.6 kernels. 2.6 based kernels are EOL, upgrading from them is no longer suported.

Special Instructions and Notes:

• Please reboot the system after installing this update.

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:

• openSUSE Leap 15.4
  zypper in -t patch openSUSE-SLE-15.4-2023-4347=1
• openSUSE Leap 15.5
  zypper in -t patch openSUSE-SLE-15.5-2023-4347=1
• SUSE Linux Enterprise Live Patching 15-SP1
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2023-4347=1
• SUSE Linux Enterprise High Availability Extension 15 SP1
  zypper in -t patch SUSE-SLE-Product-HA-15-SP1-2023-4347=1
• SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-LTSS-2023-4347=1
• SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-LTSS-2023-4347=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP1
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2023-4347=1
• SUSE CaaS Platform 4.0
  To install this update, use the SUSE CaaS Platform 'skuba' tool. It will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way.

Package List:

• openSUSE Leap 15.4 (nosrc)
  • kernel-debug-4.12.14-150100.197.160.1
  • kernel-default-4.12.14-150100.197.160.1
  • kernel-kvmsmall-4.12.14-150100.197.160.1
  • kernel-zfcpdump-4.12.14-150100.197.160.1
• openSUSE Leap 15.4 (ppc64le x86_64)
  • kernel-debug-base-4.12.14-150100.197.160.1
  • kernel-debug-base-debuginfo-4.12.14-150100.197.160.1
• openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64)
  • kernel-vanilla-debuginfo-4.12.14-150100.197.160.1
  • kernel-vanilla-devel-4.12.14-150100.197.160.1
  • kernel-vanilla-base-4.12.14-150100.197.160.1
  • kernel-default-base-debuginfo-4.12.14-150100.197.160.1
  • kernel-vanilla-livepatch-devel-4.12.14-150100.197.160.1
  • kernel-vanilla-base-debuginfo-4.12.14-150100.197.160.1
  • kernel-vanilla-debugsource-4.12.14-150100.197.160.1
  • kernel-vanilla-devel-debuginfo-4.12.14-150100.197.160.1
• openSUSE Leap 15.4 (x86_64)
  • kernel-kvmsmall-base-debuginfo-4.12.14-150100.197.160.1
  • kernel-kvmsmall-base-4.12.14-150100.197.160.1
• openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 nosrc)
  • kernel-vanilla-4.12.14-150100.197.160.1
• openSUSE Leap 15.4 (s390x)
  • kernel-default-man-4.12.14-150100.197.160.1
  • kernel-zfcpdump-man-4.12.14-150100.197.160.1
• openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 nosrc)
  • kernel-vanilla-4.12.14-150100.197.160.1
• openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64)
  • kernel-vanilla-debuginfo-4.12.14-150100.197.160.1
  • kernel-vanilla-devel-4.12.14-150100.197.160.1
  • kernel-vanilla-base-4.12.14-150100.197.160.1
  • kernel-vanilla-livepatch-devel-4.12.14-150100.197.160.1
  • kernel-vanilla-base-debuginfo-4.12.14-150100.197.160.1
  • kernel-vanilla-debugsource-4.12.14-150100.197.160.1
  • kernel-vanilla-devel-debuginfo-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Live Patching 15-SP1 (nosrc)
  • kernel-default-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Live Patching 15-SP1 (ppc64le x86_64)
  • kernel-default-livepatch-devel-4.12.14-150100.197.160.1
  • kernel-livepatch-4_12_14-150100_197_160-default-1-150100.3.3.1
  • kernel-default-livepatch-4.12.14-150100.197.160.1
  • kernel-default-debuginfo-4.12.14-150100.197.160.1
  • kernel-default-debugsource-4.12.14-150100.197.160.1
• SUSE Linux Enterprise High Availability Extension 15 SP1 (aarch64 ppc64le s390x x86_64)
  • ocfs2-kmp-default-debuginfo-4.12.14-150100.197.160.1
  • cluster-md-kmp-default-4.12.14-150100.197.160.1
  • ocfs2-kmp-default-4.12.14-150100.197.160.1
  • kernel-default-debuginfo-4.12.14-150100.197.160.1
  • dlm-kmp-default-debuginfo-4.12.14-150100.197.160.1
  • gfs2-kmp-default-4.12.14-150100.197.160.1
  • cluster-md-kmp-default-debuginfo-4.12.14-150100.197.160.1
  • kernel-default-debugsource-4.12.14-150100.197.160.1
  • gfs2-kmp-default-debuginfo-4.12.14-150100.197.160.1
  • dlm-kmp-default-4.12.14-150100.197.160.1
• SUSE Linux Enterprise High Availability Extension 15 SP1 (nosrc)
  • kernel-default-4.12.14-150100.197.160.1
• SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1 (aarch64 nosrc x86_64)
  • kernel-default-4.12.14-150100.197.160.1
• SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1 (aarch64 x86_64)
  • kernel-default-devel-4.12.14-150100.197.160.1
  • kernel-default-base-debuginfo-4.12.14-150100.197.160.1
  • kernel-syms-4.12.14-150100.197.160.1
  • kernel-default-debuginfo-4.12.14-150100.197.160.1
  • kernel-default-devel-debuginfo-4.12.14-150100.197.160.1
  • kernel-obs-build-4.12.14-150100.197.160.1
  • kernel-default-debugsource-4.12.14-150100.197.160.1
  • kernel-default-base-4.12.14-150100.197.160.1
  • kernel-obs-build-debugsource-4.12.14-150100.197.160.1
• SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1 (noarch)
  • kernel-source-4.12.14-150100.197.160.1
  • kernel-devel-4.12.14-150100.197.160.1
  • kernel-macros-4.12.14-150100.197.160.1
• SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1 (noarch nosrc)
  • kernel-docs-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 (aarch64 ppc64le s390x x86_64 nosrc)
  • kernel-default-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 (aarch64 ppc64le s390x x86_64)
  • kernel-default-devel-4.12.14-150100.197.160.1
  • reiserfs-kmp-default-4.12.14-150100.197.160.1
  • reiserfs-kmp-default-debuginfo-4.12.14-150100.197.160.1
  • kernel-default-base-debuginfo-4.12.14-150100.197.160.1
  • kernel-syms-4.12.14-150100.197.160.1
  • kernel-default-debuginfo-4.12.14-150100.197.160.1
  • kernel-default-devel-debuginfo-4.12.14-150100.197.160.1
  • kernel-obs-build-4.12.14-150100.197.160.1
  • kernel-default-debugsource-4.12.14-150100.197.160.1
  • kernel-default-base-4.12.14-150100.197.160.1
  • kernel-obs-build-debugsource-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 (noarch)
  • kernel-source-4.12.14-150100.197.160.1
  • kernel-devel-4.12.14-150100.197.160.1
  • kernel-macros-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 (noarch nosrc)
  • kernel-docs-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 (s390x)
  • kernel-zfcpdump-debugsource-4.12.14-150100.197.160.1
  • kernel-default-man-4.12.14-150100.197.160.1
  • kernel-zfcpdump-debuginfo-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 (nosrc)
  • kernel-zfcpdump-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP1 (nosrc ppc64le x86_64)
  • kernel-default-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP1 (ppc64le x86_64)
  • kernel-default-devel-4.12.14-150100.197.160.1
  • reiserfs-kmp-default-4.12.14-150100.197.160.1
  • reiserfs-kmp-default-debuginfo-4.12.14-150100.197.160.1
  • kernel-default-base-debuginfo-4.12.14-150100.197.160.1
  • kernel-syms-4.12.14-150100.197.160.1
  • kernel-default-debuginfo-4.12.14-150100.197.160.1
  • kernel-default-devel-debuginfo-4.12.14-150100.197.160.1
  • kernel-obs-build-4.12.14-150100.197.160.1
  • kernel-default-debugsource-4.12.14-150100.197.160.1
  • kernel-default-base-4.12.14-150100.197.160.1
  • kernel-obs-build-debugsource-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP1 (noarch)
  • kernel-source-4.12.14-150100.197.160.1
  • kernel-devel-4.12.14-150100.197.160.1
  • kernel-macros-4.12.14-150100.197.160.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP1 (noarch nosrc)
  • kernel-docs-4.12.14-150100.197.160.1
• SUSE CaaS Platform 4.0 (nosrc x86_64)
  • kernel-default-4.12.14-150100.197.160.1
• SUSE CaaS Platform 4.0 (x86_64)
  • kernel-default-devel-4.12.14-150100.197.160.1
  • reiserfs-kmp-default-4.12.14-150100.197.160.1
  • reiserfs-kmp-default-debuginfo-4.12.14-150100.197.160.1
  • kernel-default-base-debuginfo-4.12.14-150100.197.160.1
  • kernel-syms-4.12.14-150100.197.160.1
  • kernel-default-debuginfo-4.12.14-150100.197.160.1
  • kernel-default-devel-debuginfo-4.12.14-150100.197.160.1
  • kernel-obs-build-4.12.14-150100.197.160.1
  • kernel-default-debugsource-4.12.14-150100.197.160.1
  • kernel-default-base-4.12.14-150100.197.160.1
  • kernel-obs-build-debugsource-4.12.14-150100.197.160.1
• SUSE CaaS Platform 4.0 (noarch)
  • kernel-source-4.12.14-150100.197.160.1
  • kernel-devel-4.12.14-150100.197.160.1
  • kernel-macros-4.12.14-150100.197.160.1
• SUSE CaaS Platform 4.0 (noarch nosrc)
  • kernel-docs-4.12.14-150100.197.160.1

References:

• https://www.suse.com/security/cve/CVE-2020-36766.html
• https://www.suse.com/security/cve/CVE-2023-1192.html
• https://www.suse.com/security/cve/CVE-2023-1206.html
• https://www.suse.com/security/cve/CVE-2023-1859.html
• https://www.suse.com/security/cve/CVE-2023-31085.html
• https://www.suse.com/security/cve/CVE-2023-34324.html
• https://www.suse.com/security/cve/CVE-2023-39189.html
• https://www.suse.com/security/cve/CVE-2023-39192.html
• https://www.suse.com/security/cve/CVE-2023-39193.html
• https://www.suse.com/security/cve/CVE-2023-39194.html
• https://www.suse.com/security/cve/CVE-2023-40283.html
• https://www.suse.com/security/cve/CVE-2023-42754.html
• https://www.suse.com/security/cve/CVE-2023-45862.html
• https://www.suse.com/security/cve/CVE-2023-4622.html
• https://www.suse.com/security/cve/CVE-2023-4623.html
• https://www.suse.com/security/cve/CVE-2023-4881.html
• https://www.suse.com/security/cve/CVE-2023-4921.html
• https://bugzilla.suse.com/show_bug.cgi?id=1208995
• https://bugzilla.suse.com/show_bug.cgi?id=1210169
• https://bugzilla.suse.com/show_bug.cgi?id=1210778
• https://bugzilla.suse.com/show_bug.cgi?id=1212703
• https://bugzilla.suse.com/show_bug.cgi?id=1214233
• https://bugzilla.suse.com/show_bug.cgi?id=1214380
• https://bugzilla.suse.com/show_bug.cgi?id=1214386
• https://bugzilla.suse.com/show_bug.cgi?id=1215115
• https://bugzilla.suse.com/show_bug.cgi?id=1215117
• https://bugzilla.suse.com/show_bug.cgi?id=1215221
• https://bugzilla.suse.com/show_bug.cgi?id=1215275
• https://bugzilla.suse.com/show_bug.cgi?id=1215299
• https://bugzilla.suse.com/show_bug.cgi?id=1215467