Security update for xen

Announcement ID:	SUSE-SU-2017:0983-1
Rating:	important
References:	bsc#1014136 bsc#1015348 bsc#1022555 bsc#1026236 bsc#1027519 bsc#1028235 bsc#1029128 bsc#1029827 bsc#1030144 bsc#1030442
Cross-References:	CVE-2017-6505 CVE-2017-7228
CVSS scores:	CVE-2017-6505 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2017-6505 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2017-7228 ( NVD ): 8.2 CVSS:3.0/AV:L/AC:L/PR:H/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 two vulnerabilities and has eight security fixes can now be installed.

Description:

This update for xen to version 4.7.2 fixes the following issues:

These security issues were fixed:

• CVE-2017-7228: Broken check in memory_exchange() permited PV guest breakout (bsc#1030442).
• XSA-206: Unprivileged guests issuing writes to xenstore were able to stall progress of the control domain or driver domain, possibly leading to a Denial of Service (DoS) of the entire host (bsc#1030144).
• CVE-2017-6505: The ohci_service_ed_list function in hw/usb/hcd-ohci.c allowed local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors (bsc#1028235).

These non-security issues were fixed:

• bsc#1015348: libvirtd didn't not start during boot
• bsc#1014136: kdump couldn't dump a kernel on SLES12-SP2 with Xen hypervisor.
• bsc#1026236: Fixed paravirtualized performance
• bsc#1022555: Timeout in "execution of /etc/xen/scripts/block add"
• bsc#1029827: Forward port xenstored
• bsc#1029128: Make xen to really produce xen.efi with gcc48

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-SP2-2017-572=1
• SUSE Linux Enterprise Software Development Kit 12 12-SP2
  zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-572=1
• SUSE Linux Enterprise High Performance Computing 12 SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-572=1
• SUSE Linux Enterprise Server 12 SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-572=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-572=1

Package List:

• SUSE Linux Enterprise Desktop 12 SP2 (x86_64)
  • xen-libs-debuginfo-4.7.2_02-36.1
  • xen-debugsource-4.7.2_02-36.1
  • xen-libs-32bit-4.7.2_02-36.1
  • xen-libs-debuginfo-32bit-4.7.2_02-36.1
  • xen-libs-4.7.2_02-36.1
  • xen-4.7.2_02-36.1
• SUSE Linux Enterprise Software Development Kit 12 12-SP2 (aarch64 x86_64)
  • xen-debugsource-4.7.2_02-36.1
  • xen-devel-4.7.2_02-36.1
• SUSE Linux Enterprise High Performance Computing 12 SP2 (x86_64)
  • xen-tools-4.7.2_02-36.1
  • xen-libs-debuginfo-4.7.2_02-36.1
  • xen-debugsource-4.7.2_02-36.1
  • xen-tools-debuginfo-4.7.2_02-36.1
  • xen-tools-domU-4.7.2_02-36.1
  • xen-libs-32bit-4.7.2_02-36.1
  • xen-tools-domU-debuginfo-4.7.2_02-36.1
  • xen-doc-html-4.7.2_02-36.1
  • xen-libs-debuginfo-32bit-4.7.2_02-36.1
  • xen-libs-4.7.2_02-36.1
  • xen-4.7.2_02-36.1
• SUSE Linux Enterprise Server 12 SP2 (x86_64)
  • xen-tools-4.7.2_02-36.1
  • xen-libs-debuginfo-4.7.2_02-36.1
  • xen-debugsource-4.7.2_02-36.1
  • xen-tools-debuginfo-4.7.2_02-36.1
  • xen-tools-domU-4.7.2_02-36.1
  • xen-libs-32bit-4.7.2_02-36.1
  • xen-tools-domU-debuginfo-4.7.2_02-36.1
  • xen-doc-html-4.7.2_02-36.1
  • xen-libs-debuginfo-32bit-4.7.2_02-36.1
  • xen-libs-4.7.2_02-36.1
  • xen-4.7.2_02-36.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (x86_64)
  • xen-tools-4.7.2_02-36.1
  • xen-libs-debuginfo-4.7.2_02-36.1
  • xen-debugsource-4.7.2_02-36.1
  • xen-tools-debuginfo-4.7.2_02-36.1
  • xen-tools-domU-4.7.2_02-36.1
  • xen-libs-32bit-4.7.2_02-36.1
  • xen-tools-domU-debuginfo-4.7.2_02-36.1
  • xen-doc-html-4.7.2_02-36.1
  • xen-libs-debuginfo-32bit-4.7.2_02-36.1
  • xen-libs-4.7.2_02-36.1
  • xen-4.7.2_02-36.1

References:

• https://www.suse.com/security/cve/CVE-2017-6505.html
• https://www.suse.com/security/cve/CVE-2017-7228.html
• https://bugzilla.suse.com/show_bug.cgi?id=1014136
• https://bugzilla.suse.com/show_bug.cgi?id=1015348
• https://bugzilla.suse.com/show_bug.cgi?id=1022555
• https://bugzilla.suse.com/show_bug.cgi?id=1026236
• https://bugzilla.suse.com/show_bug.cgi?id=1027519
• https://bugzilla.suse.com/show_bug.cgi?id=1028235
• https://bugzilla.suse.com/show_bug.cgi?id=1029128
• https://bugzilla.suse.com/show_bug.cgi?id=1029827
• https://bugzilla.suse.com/show_bug.cgi?id=1030144
• https://bugzilla.suse.com/show_bug.cgi?id=1030442