Security update for xen

Announcement ID:	SUSE-SU-2018:0909-1
Rating:	important
References:	bsc#1027519 bsc#1072834 bsc#1074562 bsc#1080635 bsc#1080662 bsc#1087251
Cross-References:	CVE-2017-5715 CVE-2017-5753 CVE-2017-5754 CVE-2018-7540 CVE-2018-7541
CVSS scores:	CVE-2017-5715 ( SUSE ): 7.1 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVE-2017-5715 ( NVD ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2017-5715 ( NVD ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2017-5753 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2017-5753 ( SUSE ): 7.1 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVE-2017-5753 ( NVD ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2017-5753 ( NVD ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2017-5754 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2017-5754 ( SUSE ): 7.1 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVE-2017-5754 ( NVD ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2018-7540 ( SUSE ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2018-7540 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2018-7541 ( SUSE ): 8.5 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H CVE-2018-7541 ( NVD ): 8.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products:	SUSE Linux Enterprise Desktop 12 SP2 SUSE Linux Enterprise High Performance Computing 12 SP2 SUSE Linux Enterprise Server 12 SP2 SUSE Linux Enterprise Server for SAP Applications 12 SP2 SUSE Linux Enterprise Software Development Kit 12 12-SP2

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

Description:

This update for xen fixes the following issues:

Update to Xen 4.7.5 bug fix only release (bsc#1027519)

Security issues fixed:

• CVE-2018-7540: Fixed DoS via non-preemptable L3/L4 pagetable freeing (XSA-252) (bsc#1080635)
• CVE-2018-7541: A grant table v2 -> v1 transition may crash Xen (XSA-255) (bsc#1080662)

• CVE-2017-5753,CVE-2017-5715,CVE-2017-5754 Fixed information leaks via side effects of speculative execution (XSA-254). Includes Spectre v2 mitigation. (bsc#1074562)

• Preserve xen-syms from xen-dbg.gz to allow processing vmcores with crash(1) (bsc#1087251)

• Xen HVM: Fixed unchecked MSR access error (bsc#1072834)
• Add script, udev rule and systemd service to watch for vcpu online/offline events in a HVM domU They are triggered via xl vcpu-set domU N (fate#324965)
• Make sure tools and tools-domU require libs from the very same build

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 Desktop 12 SP2
  zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2018-612=1
• SUSE Linux Enterprise Software Development Kit 12 12-SP2
  zypper in -t patch SUSE-SLE-SDK-12-SP2-2018-612=1
• SUSE Linux Enterprise High Performance Computing 12 SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-612=1
• SUSE Linux Enterprise Server 12 SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-612=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-612=1

Package List:

• SUSE Linux Enterprise Desktop 12 SP2 (x86_64)
  • xen-4.7.5_02-43.27.1
  • xen-debugsource-4.7.5_02-43.27.1
  • xen-libs-32bit-4.7.5_02-43.27.1
  • xen-libs-debuginfo-32bit-4.7.5_02-43.27.1
  • xen-libs-4.7.5_02-43.27.1
  • xen-libs-debuginfo-4.7.5_02-43.27.1
• SUSE Linux Enterprise Software Development Kit 12 12-SP2 (aarch64 x86_64)
  • xen-debugsource-4.7.5_02-43.27.1
  • xen-devel-4.7.5_02-43.27.1
• SUSE Linux Enterprise High Performance Computing 12 SP2 (x86_64)
  • xen-4.7.5_02-43.27.1
  • xen-debugsource-4.7.5_02-43.27.1
  • xen-doc-html-4.7.5_02-43.27.1
  • xen-tools-domU-debuginfo-4.7.5_02-43.27.1
  • xen-libs-32bit-4.7.5_02-43.27.1
  • xen-libs-debuginfo-32bit-4.7.5_02-43.27.1
  • xen-libs-4.7.5_02-43.27.1
  • xen-tools-domU-4.7.5_02-43.27.1
  • xen-tools-4.7.5_02-43.27.1
  • xen-tools-debuginfo-4.7.5_02-43.27.1
  • xen-libs-debuginfo-4.7.5_02-43.27.1
• SUSE Linux Enterprise Server 12 SP2 (x86_64)
  • xen-4.7.5_02-43.27.1
  • xen-debugsource-4.7.5_02-43.27.1
  • xen-doc-html-4.7.5_02-43.27.1
  • xen-tools-domU-debuginfo-4.7.5_02-43.27.1
  • xen-libs-32bit-4.7.5_02-43.27.1
  • xen-libs-debuginfo-32bit-4.7.5_02-43.27.1
  • xen-libs-4.7.5_02-43.27.1
  • xen-tools-domU-4.7.5_02-43.27.1
  • xen-tools-4.7.5_02-43.27.1
  • xen-tools-debuginfo-4.7.5_02-43.27.1
  • xen-libs-debuginfo-4.7.5_02-43.27.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (x86_64)
  • xen-4.7.5_02-43.27.1
  • xen-debugsource-4.7.5_02-43.27.1
  • xen-doc-html-4.7.5_02-43.27.1
  • xen-tools-domU-debuginfo-4.7.5_02-43.27.1
  • xen-libs-32bit-4.7.5_02-43.27.1
  • xen-libs-debuginfo-32bit-4.7.5_02-43.27.1
  • xen-libs-4.7.5_02-43.27.1
  • xen-tools-domU-4.7.5_02-43.27.1
  • xen-tools-4.7.5_02-43.27.1
  • xen-tools-debuginfo-4.7.5_02-43.27.1
  • xen-libs-debuginfo-4.7.5_02-43.27.1

References:

• https://www.suse.com/security/cve/CVE-2017-5715.html
• https://www.suse.com/security/cve/CVE-2017-5753.html
• https://www.suse.com/security/cve/CVE-2017-5754.html
• https://www.suse.com/security/cve/CVE-2018-7540.html
• https://www.suse.com/security/cve/CVE-2018-7541.html
• https://bugzilla.suse.com/show_bug.cgi?id=1027519
• https://bugzilla.suse.com/show_bug.cgi?id=1072834
• https://bugzilla.suse.com/show_bug.cgi?id=1074562
• https://bugzilla.suse.com/show_bug.cgi?id=1080635
• https://bugzilla.suse.com/show_bug.cgi?id=1080662
• https://bugzilla.suse.com/show_bug.cgi?id=1087251