Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2020:1597-1
Rating:	important
References:	bsc#1154824 bsc#1164871 bsc#1171098 bsc#1171195 bsc#1171202 bsc#1171218 bsc#1171219 bsc#1171689 bsc#1171698 bsc#1172221 bsc#1172317
Cross-References:	CVE-2020-0543 CVE-2020-10757 CVE-2020-12114 CVE-2020-12652 CVE-2020-12653 CVE-2020-12654 CVE-2020-12656
CVSS scores:	CVE-2020-0543 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2020-0543 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2020-10757 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-10757 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-12114 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-12114 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-12652 ( SUSE ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-12652 ( NVD ): 4.1 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H CVE-2020-12653 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-12653 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-12654 ( SUSE ): 8.0 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVE-2020-12654 ( NVD ): 7.1 CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVE-2020-12656 ( SUSE ): 2.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2020-12656 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:	SUSE Linux Enterprise High Availability Extension 12 SP2 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 BCL 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 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 seven vulnerabilities and has four security fixes can now be installed.

Description:

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or "CrossTalk" (bsc#1154824).
• CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).
• CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).
• CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).
• CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).
• CVE-2020-12114: Fixed A pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).
• CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

The following non-security bugs were fixed:

• can, slip: Protect tty->disc_data in write_wakeup and close with RCU (bsc#1171698).
• KEYS: allow reaching the keys quotas exactly (bsc#1171689).
• KEYS: reaching the keys quotas correctly (bsc#1171689).
• Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()" (bsc#1172221).
• random: always use batched entropy for get_random_u{32,64} (bsc#1164871).

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:

• SUSE OpenStack Cloud 7
  zypper in -t patch SUSE-OpenStack-Cloud-7-2020-1597=1
• SUSE Linux Enterprise High Availability Extension 12 SP2
  zypper in -t patch SUSE-SLE-HA-12-SP2-2020-1597=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2
  zypper in -t patch SUSE-SLE-SAP-12-SP2-2020-1597=1 SUSE-SLE-HA-12-SP2-2020-1597=1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2
  zypper in -t patch SUSE-SLE-POS-12-SP2-CLIENT-2020-1597=1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2020-1597=1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-ESPOS-2020-1597=1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2020-1597=1

Package List:

• SUSE OpenStack Cloud 7 (nosrc x86_64)
  • kernel-default-4.4.121-92.135.1
• SUSE OpenStack Cloud 7 (x86_64)
  • kernel-default-debugsource-4.4.121-92.135.1
  • kernel-default-devel-4.4.121-92.135.1
  • kernel-default-debuginfo-4.4.121-92.135.1
  • kernel-syms-4.4.121-92.135.1
  • kernel-default-base-4.4.121-92.135.1
  • kernel-default-base-debuginfo-4.4.121-92.135.1
  • kgraft-patch-4_4_121-92_135-default-1-3.5.1
• SUSE OpenStack Cloud 7 (noarch)
  • kernel-macros-4.4.121-92.135.1
  • kernel-source-4.4.121-92.135.1
  • kernel-devel-4.4.121-92.135.1
• SUSE Linux Enterprise High Availability Extension 12 SP2 (ppc64le s390x x86_64)
  • cluster-md-kmp-default-debuginfo-4.4.121-92.135.1
  • ocfs2-kmp-default-debuginfo-4.4.121-92.135.1
  • cluster-network-kmp-default-4.4.121-92.135.1
  • dlm-kmp-default-debuginfo-4.4.121-92.135.1
  • kernel-default-debugsource-4.4.121-92.135.1
  • kernel-default-debuginfo-4.4.121-92.135.1
  • gfs2-kmp-default-debuginfo-4.4.121-92.135.1
  • gfs2-kmp-default-4.4.121-92.135.1
  • cluster-network-kmp-default-debuginfo-4.4.121-92.135.1
  • cluster-md-kmp-default-4.4.121-92.135.1
  • ocfs2-kmp-default-4.4.121-92.135.1
  • dlm-kmp-default-4.4.121-92.135.1
• SUSE Linux Enterprise High Availability Extension 12 SP2 (nosrc)
  • kernel-default-4.4.121-92.135.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (ppc64le x86_64)
  • cluster-md-kmp-default-debuginfo-4.4.121-92.135.1
  • ocfs2-kmp-default-debuginfo-4.4.121-92.135.1
  • cluster-network-kmp-default-4.4.121-92.135.1
  • dlm-kmp-default-debuginfo-4.4.121-92.135.1
  • kernel-default-debugsource-4.4.121-92.135.1
  • kernel-default-devel-4.4.121-92.135.1
  • kernel-default-debuginfo-4.4.121-92.135.1
  • gfs2-kmp-default-debuginfo-4.4.121-92.135.1
  • gfs2-kmp-default-4.4.121-92.135.1
  • cluster-network-kmp-default-debuginfo-4.4.121-92.135.1
  • cluster-md-kmp-default-4.4.121-92.135.1
  • ocfs2-kmp-default-4.4.121-92.135.1
  • kernel-default-base-4.4.121-92.135.1
  • kernel-default-base-debuginfo-4.4.121-92.135.1
  • kernel-syms-4.4.121-92.135.1
  • kgraft-patch-4_4_121-92_135-default-1-3.5.1
  • dlm-kmp-default-4.4.121-92.135.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (nosrc ppc64le x86_64)
  • kernel-default-4.4.121-92.135.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (noarch)
  • kernel-macros-4.4.121-92.135.1
  • kernel-source-4.4.121-92.135.1
  • kernel-devel-4.4.121-92.135.1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (nosrc x86_64)
  • kernel-default-4.4.121-92.135.1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (x86_64)
  • kernel-default-debugsource-4.4.121-92.135.1
  • kernel-default-devel-4.4.121-92.135.1
  • kernel-default-debuginfo-4.4.121-92.135.1
  • kernel-syms-4.4.121-92.135.1
  • kernel-default-base-4.4.121-92.135.1
  • kernel-default-base-debuginfo-4.4.121-92.135.1
  • kgraft-patch-4_4_121-92_135-default-1-3.5.1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (noarch)
  • kernel-macros-4.4.121-92.135.1
  • kernel-source-4.4.121-92.135.1
  • kernel-devel-4.4.121-92.135.1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (nosrc x86_64)
  • kernel-default-4.4.121-92.135.1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (x86_64)
  • kernel-default-debugsource-4.4.121-92.135.1
  • kernel-default-devel-4.4.121-92.135.1
  • kernel-default-debuginfo-4.4.121-92.135.1
  • kernel-syms-4.4.121-92.135.1
  • kernel-default-base-4.4.121-92.135.1
  • kernel-default-base-debuginfo-4.4.121-92.135.1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (noarch)
  • kernel-macros-4.4.121-92.135.1
  • kernel-source-4.4.121-92.135.1
  • kernel-devel-4.4.121-92.135.1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 (nosrc x86_64)
  • kernel-default-4.4.121-92.135.1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 (x86_64)
  • kernel-default-debugsource-4.4.121-92.135.1
  • kernel-default-devel-4.4.121-92.135.1
  • kernel-default-debuginfo-4.4.121-92.135.1
  • kernel-syms-4.4.121-92.135.1
  • kernel-default-base-4.4.121-92.135.1
  • kernel-default-base-debuginfo-4.4.121-92.135.1
  • kgraft-patch-4_4_121-92_135-default-1-3.5.1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 (noarch)
  • kernel-macros-4.4.121-92.135.1
  • kernel-source-4.4.121-92.135.1
  • kernel-devel-4.4.121-92.135.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (nosrc ppc64le s390x x86_64)
  • kernel-default-4.4.121-92.135.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (ppc64le s390x x86_64)
  • kernel-default-debugsource-4.4.121-92.135.1
  • kernel-default-devel-4.4.121-92.135.1
  • kernel-default-debuginfo-4.4.121-92.135.1
  • kernel-syms-4.4.121-92.135.1
  • kernel-default-base-4.4.121-92.135.1
  • kernel-default-base-debuginfo-4.4.121-92.135.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (noarch)
  • kernel-macros-4.4.121-92.135.1
  • kernel-source-4.4.121-92.135.1
  • kernel-devel-4.4.121-92.135.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (ppc64le x86_64)
  • kgraft-patch-4_4_121-92_135-default-1-3.5.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (s390x)
  • kernel-default-man-4.4.121-92.135.1

References:

• https://www.suse.com/security/cve/CVE-2020-0543.html
• https://www.suse.com/security/cve/CVE-2020-10757.html
• https://www.suse.com/security/cve/CVE-2020-12114.html
• https://www.suse.com/security/cve/CVE-2020-12652.html
• https://www.suse.com/security/cve/CVE-2020-12653.html
• https://www.suse.com/security/cve/CVE-2020-12654.html
• https://www.suse.com/security/cve/CVE-2020-12656.html
• https://bugzilla.suse.com/show_bug.cgi?id=1154824
• https://bugzilla.suse.com/show_bug.cgi?id=1164871
• https://bugzilla.suse.com/show_bug.cgi?id=1171098
• https://bugzilla.suse.com/show_bug.cgi?id=1171195
• https://bugzilla.suse.com/show_bug.cgi?id=1171202
• https://bugzilla.suse.com/show_bug.cgi?id=1171218
• https://bugzilla.suse.com/show_bug.cgi?id=1171219
• https://bugzilla.suse.com/show_bug.cgi?id=1171689
• https://bugzilla.suse.com/show_bug.cgi?id=1171698
• https://bugzilla.suse.com/show_bug.cgi?id=1172221
• https://bugzilla.suse.com/show_bug.cgi?id=1172317