Security update for the Linux Kernel (Live Patch 34 for SLE 12 SP2)

Announcement ID:	SUSE-SU-2021:0870-1
Rating:	important
References:	bsc#1178684 bsc#1179616 bsc#1181553
Cross-References:	CVE-2020-27786 CVE-2020-28374 CVE-2021-3347
CVSS scores:	CVE-2020-27786 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-27786 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-28374 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVE-2020-28374 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVE-2021-3347 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-3347 ( 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 SP2 SUSE Linux Enterprise High Performance Computing 12 SP3 SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 SUSE Linux Enterprise Server 12 SP2 SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server 12 SP3 ESPOS 12-SP3 SUSE Linux Enterprise Server 12 SP3 LTSS 12-SP3 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SP2 SUSE Linux Enterprise Server for SAP Applications 12 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE OpenStack Cloud 7

An update that solves three vulnerabilities can now be installed.

Description:

This update for the Linux Kernel 4.4.121-92_129 fixes several issues.

The following security issues were fixed:

• CVE-2021-3347: Fixed a use-after-free in the PI futexes during fault handling, allowing local users to execute code in the kernel (bsc#1181553).
• CVE-2020-27786: Fixed a potential user after free which could have led to memory corruption or privilege escalation (bsc#1179616).
• CVE-2020-28374: Fixed insufficient identifier checking in the LIO SCSI target code which could have been used by remote attackers to read or write files via directory traversal in an XCOPY request (bsc#1178684).

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 Server for SAP Applications 12 SP2
  zypper in -t patch SUSE-SLE-SAP-12-SP2-2021-839=1 SUSE-SLE-SAP-12-SP2-2021-870=1 SUSE-SLE-SAP-12-SP2-2021-838=1 SUSE-SLE-SAP-12-SP2-2021-837=1 SUSE-SLE-SAP-12-SP2-2021-836=1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-ESPOS-2021-870=1 SUSE-SLE-SERVER-12-SP2-ESPOS-2021-839=1 SUSE-SLE-SERVER-12-SP2-ESPOS-2021-838=1 SUSE-SLE-SERVER-12-SP2-ESPOS-2021-837=1 SUSE-SLE-SERVER-12-SP2-ESPOS-2021-836=1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2021-839=1 SUSE-SLE-SERVER-12-SP2-2021-870=1 SUSE-SLE-SERVER-12-SP2-2021-838=1 SUSE-SLE-SERVER-12-SP2-2021-837=1 SUSE-SLE-SERVER-12-SP2-2021-836=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP3
  zypper in -t patch SUSE-SLE-SAP-12-SP3-2021-833=1 SUSE-SLE-SAP-12-SP3-2021-832=1 SUSE-SLE-SAP-12-SP3-2021-831=1 SUSE-SLE-SAP-12-SP3-2021-830=1 SUSE-SLE-SAP-12-SP3-2021-829=1 SUSE-SLE-SAP-12-SP3-2021-834=1
• SUSE Linux Enterprise Server 12 SP3 ESPOS 12-SP3
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-ESPOS-2021-834=1 SUSE-SLE-SERVER-12-SP3-ESPOS-2021-833=1 SUSE-SLE-SERVER-12-SP3-ESPOS-2021-832=1 SUSE-SLE-SERVER-12-SP3-ESPOS-2021-831=1 SUSE-SLE-SERVER-12-SP3-ESPOS-2021-830=1 SUSE-SLE-SERVER-12-SP3-ESPOS-2021-829=1
• SUSE Linux Enterprise Server 12 SP3 LTSS 12-SP3
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-834=1 SUSE-SLE-SERVER-12-SP3-2021-833=1 SUSE-SLE-SERVER-12-SP3-2021-832=1 SUSE-SLE-SERVER-12-SP3-2021-831=1 SUSE-SLE-SERVER-12-SP3-2021-830=1 SUSE-SLE-SERVER-12-SP3-2021-829=1
• SUSE OpenStack Cloud 7
  zypper in -t patch SUSE-OpenStack-Cloud-7-2021-870=1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2
  zypper in -t patch SUSE-SLE-POS-12-SP2-CLIENT-2021-870=1

Package List:

• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (ppc64le x86_64)
  • kgraft-patch-4_4_121-92_138-default-7-2.2
  • kgraft-patch-4_4_121-92_129-default-9-2.2
  • kgraft-patch-4_4_121-92_135-default-7-2.2
  • kgraft-patch-4_4_121-92_146-default-4-2.2
  • kgraft-patch-4_4_121-92_141-default-6-2.2
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 (x86_64)
  • kgraft-patch-4_4_121-92_138-default-7-2.2
  • kgraft-patch-4_4_121-92_129-default-9-2.2
  • kgraft-patch-4_4_121-92_135-default-7-2.2
  • kgraft-patch-4_4_121-92_146-default-4-2.2
  • kgraft-patch-4_4_121-92_141-default-6-2.2
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (ppc64le x86_64)
  • kgraft-patch-4_4_121-92_138-default-7-2.2
  • kgraft-patch-4_4_121-92_129-default-9-2.2
  • kgraft-patch-4_4_121-92_135-default-7-2.2
  • kgraft-patch-4_4_121-92_146-default-4-2.2
  • kgraft-patch-4_4_121-92_141-default-6-2.2
• SUSE Linux Enterprise Server for SAP Applications 12 SP3 (ppc64le x86_64)
  • kgraft-patch-4_4_180-94_116-default-8-2.2
  • kgraft-patch-4_4_180-94_116-default-debuginfo-8-2.2
  • kgraft-patch-4_4_180-94_127-default-7-2.2
  • kgraft-patch-4_4_180-94_127-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_121-default-7-2.2
  • kgraft-patch-4_4_180-94_121-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_130-default-6-2.2
  • kgraft-patch-4_4_180-94_130-default-debuginfo-6-2.2
  • kgraft-patch-4_4_180-94_135-default-4-2.2
  • kgraft-patch-4_4_180-94_135-default-debuginfo-4-2.2
  • kgraft-patch-4_4_180-94_124-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_124-default-7-2.2
• SUSE Linux Enterprise Server 12 SP3 ESPOS 12-SP3 (x86_64)
  • kgraft-patch-4_4_180-94_116-default-8-2.2
  • kgraft-patch-4_4_180-94_116-default-debuginfo-8-2.2
  • kgraft-patch-4_4_180-94_127-default-7-2.2
  • kgraft-patch-4_4_180-94_127-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_121-default-7-2.2
  • kgraft-patch-4_4_180-94_121-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_130-default-6-2.2
  • kgraft-patch-4_4_180-94_130-default-debuginfo-6-2.2
  • kgraft-patch-4_4_180-94_135-default-4-2.2
  • kgraft-patch-4_4_180-94_135-default-debuginfo-4-2.2
  • kgraft-patch-4_4_180-94_124-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_124-default-7-2.2
• SUSE Linux Enterprise Server 12 SP3 LTSS 12-SP3 (ppc64le x86_64)
  • kgraft-patch-4_4_180-94_116-default-8-2.2
  • kgraft-patch-4_4_180-94_116-default-debuginfo-8-2.2
  • kgraft-patch-4_4_180-94_127-default-7-2.2
  • kgraft-patch-4_4_180-94_127-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_121-default-7-2.2
  • kgraft-patch-4_4_180-94_121-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_130-default-6-2.2
  • kgraft-patch-4_4_180-94_130-default-debuginfo-6-2.2
  • kgraft-patch-4_4_180-94_135-default-4-2.2
  • kgraft-patch-4_4_180-94_135-default-debuginfo-4-2.2
  • kgraft-patch-4_4_180-94_124-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_124-default-7-2.2
• SUSE OpenStack Cloud 7 (x86_64)
  • kgraft-patch-4_4_121-92_138-default-7-2.2
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (x86_64)
  • kgraft-patch-4_4_121-92_138-default-7-2.2

References:

• https://www.suse.com/security/cve/CVE-2020-27786.html
• https://www.suse.com/security/cve/CVE-2020-28374.html
• https://www.suse.com/security/cve/CVE-2021-3347.html
• https://bugzilla.suse.com/show_bug.cgi?id=1178684
• https://bugzilla.suse.com/show_bug.cgi?id=1179616
• https://bugzilla.suse.com/show_bug.cgi?id=1181553