Security update for xen

Announcement ID: SUSE-SU-2017:2519-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2017-14316 ( SUSE ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-14316 ( NVD ): 8.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2017-14317 ( SUSE ): 4.4 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-14317 ( NVD ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
  • CVE-2017-14318 ( SUSE ): 7.8 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2017-14318 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
  • CVE-2017-14319 ( SUSE ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-14319 ( 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 Container as a Service Platform 1.0
  • SUSE Container as a Service Platform 2.0
  • 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 four vulnerabilities and has two security fixes can now be installed.

Description:

This update for xen fixes several issues.

These security issues were fixed:

  • CVE-2017-14316: Missing bound check in function alloc_heap_pages for an internal array allowed attackers using crafted hypercalls to execute arbitrary code within Xen (XSA-231, bsc#1056278)
  • CVE-2017-14318: The function __gnttab_cache_flush missed a check for grant tables, allowing a malicious guest to crash the host or for x86 PV guests to potentially escalate privileges (XSA-232, bsc#1056280)
  • CVE-2017-14317: A race in cxenstored may have cause a double-free allowind for DoS of the xenstored daemon (XSA-233, bsc#1056281).
  • CVE-2017-14319: An error while handling grant mappings allowed malicious or buggy x86 PV guest to escalate its privileges or crash the hypervisor (XSA-234, bsc#1056282).

These non-security issues were fixed:

  • bsc#1055695: Fixed restoring updates for HVM guests for ballooned domUs

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-SP2-2017-1558=1
  • SUSE Linux Enterprise Software Development Kit 12 12-SP2
    zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-1558=1
  • SUSE Linux Enterprise High Performance Computing 12 SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1558=1
  • SUSE Linux Enterprise Server 12 SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1558=1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1558=1
  • SUSE Container as a Service Platform 2.0
    To install this update, use the SUSE CaaS Platform 'skuba' tool. It will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way.
  • SUSE Container as a Service Platform 1.0
    To install this update, use the SUSE CaaS Platform 'skuba' tool. It will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way.

Package List:

  • SUSE Linux Enterprise Desktop 12 SP2 (x86_64)
    • xen-4.7.3_04-43.12.1
    • xen-libs-32bit-4.7.3_04-43.12.1
    • xen-libs-debuginfo-4.7.3_04-43.12.1
    • xen-libs-4.7.3_04-43.12.1
    • xen-debugsource-4.7.3_04-43.12.1
    • xen-libs-debuginfo-32bit-4.7.3_04-43.12.1
  • SUSE Linux Enterprise Software Development Kit 12 12-SP2 (aarch64 x86_64)
    • xen-debugsource-4.7.3_04-43.12.1
    • xen-devel-4.7.3_04-43.12.1
  • SUSE Linux Enterprise High Performance Computing 12 SP2 (x86_64)
    • xen-4.7.3_04-43.12.1
    • xen-doc-html-4.7.3_04-43.12.1
    • xen-tools-domU-4.7.3_04-43.12.1
    • xen-libs-32bit-4.7.3_04-43.12.1
    • xen-libs-debuginfo-4.7.3_04-43.12.1
    • xen-tools-debuginfo-4.7.3_04-43.12.1
    • xen-tools-4.7.3_04-43.12.1
    • xen-libs-4.7.3_04-43.12.1
    • xen-debugsource-4.7.3_04-43.12.1
    • xen-tools-domU-debuginfo-4.7.3_04-43.12.1
    • xen-libs-debuginfo-32bit-4.7.3_04-43.12.1
  • SUSE Linux Enterprise Server 12 SP2 (x86_64)
    • xen-4.7.3_04-43.12.1
    • xen-doc-html-4.7.3_04-43.12.1
    • xen-tools-domU-4.7.3_04-43.12.1
    • xen-libs-32bit-4.7.3_04-43.12.1
    • xen-libs-debuginfo-4.7.3_04-43.12.1
    • xen-tools-debuginfo-4.7.3_04-43.12.1
    • xen-tools-4.7.3_04-43.12.1
    • xen-libs-4.7.3_04-43.12.1
    • xen-debugsource-4.7.3_04-43.12.1
    • xen-tools-domU-debuginfo-4.7.3_04-43.12.1
    • xen-libs-debuginfo-32bit-4.7.3_04-43.12.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2 (x86_64)
    • xen-4.7.3_04-43.12.1
    • xen-doc-html-4.7.3_04-43.12.1
    • xen-tools-domU-4.7.3_04-43.12.1
    • xen-libs-32bit-4.7.3_04-43.12.1
    • xen-libs-debuginfo-4.7.3_04-43.12.1
    • xen-tools-debuginfo-4.7.3_04-43.12.1
    • xen-tools-4.7.3_04-43.12.1
    • xen-libs-4.7.3_04-43.12.1
    • xen-debugsource-4.7.3_04-43.12.1
    • xen-tools-domU-debuginfo-4.7.3_04-43.12.1
    • xen-libs-debuginfo-32bit-4.7.3_04-43.12.1
  • SUSE Container as a Service Platform 2.0 (x86_64)
    • xen-libs-debuginfo-4.7.3_04-43.12.1
    • xen-libs-4.7.3_04-43.12.1
    • xen-debugsource-4.7.3_04-43.12.1
    • xen-tools-domU-debuginfo-4.7.3_04-43.12.1
    • xen-tools-domU-4.7.3_04-43.12.1
  • SUSE Container as a Service Platform 1.0 (x86_64)
    • xen-libs-debuginfo-4.7.3_04-43.12.1
    • xen-libs-4.7.3_04-43.12.1
    • xen-debugsource-4.7.3_04-43.12.1
    • xen-tools-domU-debuginfo-4.7.3_04-43.12.1
    • xen-tools-domU-4.7.3_04-43.12.1

References: