Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2017:1618-1
Rating:	critical
References:	bsc#1039348 bsc#1042292
Cross-References:	CVE-2017-1000364
CVSS scores:	CVE-2017-1000364 ( SUSE ): 8.4 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2017-1000364 ( NVD ): 7.4 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:	Public Cloud Module 12 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 Server 12 SUSE Linux Enterprise Server 12 LTSS 12 SUSE Linux Enterprise Server 12 SP1 SUSE Linux Enterprise Server 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 SUSE Linux Enterprise Server for SAP Applications 12 SP1 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

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

Description:

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

The following security bugs were fixed:

• CVE-2017-1000364: The default stack guard page was too small and could be "jumped over" by userland programs using more than one page of stack in functions and so lead to memory corruption. This update extends the stack guard page to 1 MB (for 4k pages) and 16 MB (for 64k pages) to reduce this attack vector. This is not a kernel bugfix, but a hardening measure against this kind of userland attack.(bsc#1039348)

The following non-security bugs were fixed:

netfilter: A use-after-free was fixed that could cause a kernel panic on a system shutdown. (bsc#1042292)

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:

• Public Cloud Module 12
  zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2017-995=1
• SUSE Linux Enterprise Server for SAP Applications 12
  zypper in -t patch SUSE-SLE-SAP-12-2017-995=1
• SUSE Linux Enterprise Server 12 LTSS 12
  zypper in -t patch SUSE-SLE-SERVER-12-2017-995=1

Package List:

• Public Cloud Module 12 (nosrc x86_64)
  • kernel-ec2-3.12.61-52.77.1
• Public Cloud Module 12 (x86_64)
  • kernel-ec2-extra-3.12.61-52.77.1
  • kernel-ec2-extra-debuginfo-3.12.61-52.77.1
  • kernel-ec2-debuginfo-3.12.61-52.77.1
  • kernel-ec2-devel-3.12.61-52.77.1
  • kernel-ec2-debugsource-3.12.61-52.77.1
• SUSE Linux Enterprise Server for SAP Applications 12 (nosrc x86_64)
  • kernel-default-3.12.61-52.77.1
  • kernel-xen-3.12.61-52.77.1
• SUSE Linux Enterprise Server for SAP Applications 12 (x86_64)
  • kernel-xen-base-3.12.61-52.77.1
  • kernel-xen-debuginfo-3.12.61-52.77.1
  • kernel-default-base-3.12.61-52.77.1
  • kernel-xen-devel-3.12.61-52.77.1
  • kgraft-patch-3_12_61-52_77-default-1-4.1
  • kernel-default-base-debuginfo-3.12.61-52.77.1
  • kernel-syms-3.12.61-52.77.1
  • kernel-xen-debugsource-3.12.61-52.77.1
  • kgraft-patch-3_12_61-52_77-xen-1-4.1
  • kernel-xen-base-debuginfo-3.12.61-52.77.1
  • kernel-default-debuginfo-3.12.61-52.77.1
  • kernel-default-devel-3.12.61-52.77.1
  • kernel-default-debugsource-3.12.61-52.77.1
• SUSE Linux Enterprise Server for SAP Applications 12 (noarch)
  • kernel-source-3.12.61-52.77.1
  • kernel-macros-3.12.61-52.77.1
  • kernel-devel-3.12.61-52.77.1
• SUSE Linux Enterprise Server 12 LTSS 12 (nosrc ppc64le s390x x86_64)
  • kernel-default-3.12.61-52.77.1
• SUSE Linux Enterprise Server 12 LTSS 12 (ppc64le s390x x86_64)
  • kernel-default-base-3.12.61-52.77.1
  • kernel-default-base-debuginfo-3.12.61-52.77.1
  • kernel-syms-3.12.61-52.77.1
  • kernel-default-debuginfo-3.12.61-52.77.1
  • kernel-default-devel-3.12.61-52.77.1
  • kernel-default-debugsource-3.12.61-52.77.1
• SUSE Linux Enterprise Server 12 LTSS 12 (noarch)
  • kernel-source-3.12.61-52.77.1
  • kernel-macros-3.12.61-52.77.1
  • kernel-devel-3.12.61-52.77.1
• SUSE Linux Enterprise Server 12 LTSS 12 (x86_64)
  • kernel-xen-base-3.12.61-52.77.1
  • kernel-xen-debuginfo-3.12.61-52.77.1
  • kgraft-patch-3_12_61-52_77-default-1-4.1
  • kernel-xen-debugsource-3.12.61-52.77.1
  • kgraft-patch-3_12_61-52_77-xen-1-4.1
  • kernel-xen-base-debuginfo-3.12.61-52.77.1
  • kernel-xen-devel-3.12.61-52.77.1
• SUSE Linux Enterprise Server 12 LTSS 12 (s390x)
  • kernel-default-man-3.12.61-52.77.1
• SUSE Linux Enterprise Server 12 LTSS 12 (nosrc x86_64)
  • kernel-xen-3.12.61-52.77.1

References:

• https://www.suse.com/security/cve/CVE-2017-1000364.html
• https://bugzilla.suse.com/show_bug.cgi?id=1039348
• https://bugzilla.suse.com/show_bug.cgi?id=1042292