Security update for the Linux Kernel (Live Patch 5 for SLE 12 SP5)

Announcement ID:	SUSE-SU-2021:1724-1
Rating:	important
References:	bsc#1183452 bsc#1184710 bsc#1184952
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 SP5 SUSE Linux Enterprise High Performance Computing 15 SP1 SUSE Linux Enterprise Live Patching 15-SP1 SUSE Linux Enterprise Live Patching 12-SP5 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server 15 SP1 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP1

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

Description:

This update for the Linux Kernel 4.12.14-122_23 fixes several issues.

The following security issues were fixed:

• CVE-2020-36322: Fixed an issue inside the FUSE filesystem implementation where fuse_do_getattr() calls make_bad_inode() in inappropriate situations, could have caused 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: Fixed BPF JIT compilers that allowed to execute arbitrary code within the kernel context (bsc#1184710)
• Fix system crash on kernfs_kill_sb() as a sysfs superblock's kernfs_super_info node list was NULL (bsc#1183452).

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-SP5-2021-1745=1 SUSE-SLE-Live-Patching-12-SP5-2021-1744=1 SUSE-SLE-Live-Patching-12-SP5-2021-1743=1 SUSE-SLE-Live-Patching-12-SP5-2021-1742=1 SUSE-SLE-Live-Patching-12-SP5-2021-1741=1 SUSE-SLE-Live-Patching-12-SP5-2021-1740=1 SUSE-SLE-Live-Patching-12-SP5-2021-1739=1 SUSE-SLE-Live-Patching-12-SP5-2021-1738=1 SUSE-SLE-Live-Patching-12-SP5-2021-1737=1 SUSE-SLE-Live-Patching-12-SP5-2021-1736=1 SUSE-SLE-Live-Patching-12-SP5-2021-1735=1
• SUSE Linux Enterprise Live Patching 15-SP1
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2021-1726=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-1725=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-1724=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-1723=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-1722=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-1721=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-1720=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-1719=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-1718=1 SUSE-SLE-Module-Live-Patching-15-SP1-2021-1717=1

Package List:

• SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)
  • kgraft-patch-4_12_14-122_26-default-12-2.2
  • kgraft-patch-4_12_14-122_57-default-6-2.2
  • kgraft-patch-4_12_14-122_32-default-12-2.2
  • kgraft-patch-4_12_14-122_46-default-8-2.2
  • kgraft-patch-4_12_14-122_37-default-11-2.2
  • kgraft-patch-4_12_14-122_23-default-12-2.2
  • kgraft-patch-4_12_14-122_51-default-8-2.2
  • kgraft-patch-4_12_14-122_60-default-5-2.2
  • kgraft-patch-4_12_14-122_41-default-10-2.2
  • kgraft-patch-4_12_14-122_54-default-6-2.2
  • kgraft-patch-4_12_14-122_29-default-12-2.2
• SUSE Linux Enterprise Live Patching 15-SP1 (ppc64le x86_64)
  • kernel-livepatch-4_12_14-197_61-default-8-2.2
  • kernel-livepatch-4_12_14-197_78-default-6-2.2
  • kernel-livepatch-4_12_14-197_48-default-10-2.2
  • kernel-livepatch-4_12_14-197_75-default-6-2.2
  • kernel-livepatch-4_12_14-197_72-default-6-2.2
  • kernel-livepatch-4_12_14-197_45-default-10-2.2
  • kernel-livepatch-4_12_14-197_51-default-10-2.2
  • kernel-livepatch-4_12_14-197_67-default-7-2.2
  • kernel-livepatch-4_12_14-197_56-default-9-2.2
  • kernel-livepatch-4_12_14-197_64-default-7-2.2

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=1183452
• https://bugzilla.suse.com/show_bug.cgi?id=1184710
• https://bugzilla.suse.com/show_bug.cgi?id=1184952