Security update for the Linux Kernel (Live Patch 32 for SLE 12 SP3)

Announcement ID:	SUSE-SU-2021:1868-1
Rating:	important
References:	bsc#1184710 bsc#1184952 bsc#1186235
Cross-References:	CVE-2020-36322 CVE-2021-29154
CVSS scores:	CVE-2020-36322 ( SUSE ): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVE-2020-36322 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2021-29154 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2021-29154 ( 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 SP3 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 for SAP Applications 12 SP3

An update that solves two vulnerabilities and has one security fix can now be installed.

Description:

This update for the Linux Kernel 4.4.180-94_121 fixes several issues.

The following security issues were fixed:

• Fix a kernel warning during sysfs read (bsc#1186235)
• CVE-2020-36322: An issue was discovered in the FUSE filesystem implementation in the Linux kernel aka CID-5d069dbe8aaf. fuse_do_getattr() calls make_bad_inode() in inappropriate situations, causing a system crash. NOTE: the original fix for this vulnerability was incomplete, and its incompleteness is tracked as CVE-2021-28950 (bsc#1184952).
• CVE-2021-29154: BPF JIT compilers in the Linux kernel have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c (bsc#1184710)

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 SP3
  zypper in -t patch SUSE-SLE-SAP-12-SP3-2021-1867=1 SUSE-SLE-SAP-12-SP3-2021-1866=1 SUSE-SLE-SAP-12-SP3-2021-1865=1 SUSE-SLE-SAP-12-SP3-2021-1864=1 SUSE-SLE-SAP-12-SP3-2021-1868=1
• SUSE Linux Enterprise Server 12 SP3 ESPOS 12-SP3
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-ESPOS-2021-1867=1 SUSE-SLE-SERVER-12-SP3-ESPOS-2021-1866=1 SUSE-SLE-SERVER-12-SP3-ESPOS-2021-1865=1 SUSE-SLE-SERVER-12-SP3-ESPOS-2021-1864=1 SUSE-SLE-SERVER-12-SP3-ESPOS-2021-1868=1
• SUSE Linux Enterprise Server 12 SP3 LTSS 12-SP3
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-1867=1 SUSE-SLE-SERVER-12-SP3-2021-1866=1 SUSE-SLE-SERVER-12-SP3-2021-1865=1 SUSE-SLE-SERVER-12-SP3-2021-1864=1 SUSE-SLE-SERVER-12-SP3-2021-1868=1

Package List:

• SUSE Linux Enterprise Server for SAP Applications 12 SP3 (ppc64le x86_64)
  • kgraft-patch-4_4_180-94_135-default-7-2.2
  • kgraft-patch-4_4_180-94_124-default-10-2.2
  • kgraft-patch-4_4_180-94_124-default-debuginfo-10-2.2
  • kgraft-patch-4_4_180-94_121-default-debuginfo-10-2.2
  • kgraft-patch-4_4_180-94_130-default-debuginfo-9-2.2
  • kgraft-patch-4_4_180-94_127-default-10-2.2
  • kgraft-patch-4_4_180-94_121-default-10-2.2
  • kgraft-patch-4_4_180-94_135-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_130-default-9-2.2
  • kgraft-patch-4_4_180-94_127-default-debuginfo-10-2.2
• SUSE Linux Enterprise Server 12 SP3 ESPOS 12-SP3 (x86_64)
  • kgraft-patch-4_4_180-94_135-default-7-2.2
  • kgraft-patch-4_4_180-94_124-default-10-2.2
  • kgraft-patch-4_4_180-94_124-default-debuginfo-10-2.2
  • kgraft-patch-4_4_180-94_121-default-debuginfo-10-2.2
  • kgraft-patch-4_4_180-94_130-default-debuginfo-9-2.2
  • kgraft-patch-4_4_180-94_127-default-10-2.2
  • kgraft-patch-4_4_180-94_121-default-10-2.2
  • kgraft-patch-4_4_180-94_135-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_130-default-9-2.2
  • kgraft-patch-4_4_180-94_127-default-debuginfo-10-2.2
• SUSE Linux Enterprise Server 12 SP3 LTSS 12-SP3 (ppc64le x86_64)
  • kgraft-patch-4_4_180-94_135-default-7-2.2
  • kgraft-patch-4_4_180-94_124-default-10-2.2
  • kgraft-patch-4_4_180-94_124-default-debuginfo-10-2.2
  • kgraft-patch-4_4_180-94_121-default-debuginfo-10-2.2
  • kgraft-patch-4_4_180-94_130-default-debuginfo-9-2.2
  • kgraft-patch-4_4_180-94_127-default-10-2.2
  • kgraft-patch-4_4_180-94_121-default-10-2.2
  • kgraft-patch-4_4_180-94_135-default-debuginfo-7-2.2
  • kgraft-patch-4_4_180-94_130-default-9-2.2
  • kgraft-patch-4_4_180-94_127-default-debuginfo-10-2.2

References:

• https://www.suse.com/security/cve/CVE-2020-36322.html
• https://www.suse.com/security/cve/CVE-2021-29154.html
• https://bugzilla.suse.com/show_bug.cgi?id=1184710
• https://bugzilla.suse.com/show_bug.cgi?id=1184952
• https://bugzilla.suse.com/show_bug.cgi?id=1186235