Security update for xen

Announcement ID: SUSE-SU-2017:2420-1
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 Linux Enterprise Desktop 12 SP3
  • SUSE Linux Enterprise High Performance Computing 12 SP3
  • SUSE Linux Enterprise Server 12 SP3
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • SUSE Linux Enterprise Software Development Kit 12 SP3

An update that solves four vulnerabilities and has three 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#1057358: Fixed boot into SUSE Linux Enterprise 12.3 with secure boot
  • 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 SP3
    zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2017-1500=1
  • SUSE Linux Enterprise Software Development Kit 12 SP3
    zypper in -t patch SUSE-SLE-SDK-12-SP3-2017-1500=1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1500=1
  • SUSE Linux Enterprise Server 12 SP3
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1500=1
  • SUSE Linux Enterprise High Performance Computing 12 SP3
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1500=1

Package List:

  • SUSE Linux Enterprise Desktop 12 SP3 (x86_64)
    • xen-libs-debuginfo-32bit-4.9.0_12-3.15.1
    • xen-libs-32bit-4.9.0_12-3.15.1
    • xen-libs-4.9.0_12-3.15.1
    • xen-debugsource-4.9.0_12-3.15.1
    • xen-4.9.0_12-3.15.1
    • xen-libs-debuginfo-4.9.0_12-3.15.1
  • SUSE Linux Enterprise Software Development Kit 12 SP3 (aarch64 x86_64)
    • xen-debugsource-4.9.0_12-3.15.1
    • xen-devel-4.9.0_12-3.15.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3 (x86_64)
    • xen-libs-debuginfo-32bit-4.9.0_12-3.15.1
    • xen-libs-32bit-4.9.0_12-3.15.1
    • xen-tools-4.9.0_12-3.15.1
    • xen-libs-4.9.0_12-3.15.1
    • xen-debugsource-4.9.0_12-3.15.1
    • xen-4.9.0_12-3.15.1
    • xen-libs-debuginfo-4.9.0_12-3.15.1
    • xen-tools-domU-4.9.0_12-3.15.1
    • xen-doc-html-4.9.0_12-3.15.1
    • xen-tools-debuginfo-4.9.0_12-3.15.1
    • xen-tools-domU-debuginfo-4.9.0_12-3.15.1
  • SUSE Linux Enterprise Server 12 SP3 (x86_64)
    • xen-libs-debuginfo-32bit-4.9.0_12-3.15.1
    • xen-libs-32bit-4.9.0_12-3.15.1
    • xen-tools-4.9.0_12-3.15.1
    • xen-libs-4.9.0_12-3.15.1
    • xen-debugsource-4.9.0_12-3.15.1
    • xen-4.9.0_12-3.15.1
    • xen-libs-debuginfo-4.9.0_12-3.15.1
    • xen-tools-domU-4.9.0_12-3.15.1
    • xen-doc-html-4.9.0_12-3.15.1
    • xen-tools-debuginfo-4.9.0_12-3.15.1
    • xen-tools-domU-debuginfo-4.9.0_12-3.15.1
  • SUSE Linux Enterprise High Performance Computing 12 SP3 (x86_64)
    • xen-libs-debuginfo-32bit-4.9.0_12-3.15.1
    • xen-libs-32bit-4.9.0_12-3.15.1
    • xen-tools-4.9.0_12-3.15.1
    • xen-libs-4.9.0_12-3.15.1
    • xen-debugsource-4.9.0_12-3.15.1
    • xen-4.9.0_12-3.15.1
    • xen-libs-debuginfo-4.9.0_12-3.15.1
    • xen-tools-domU-4.9.0_12-3.15.1
    • xen-doc-html-4.9.0_12-3.15.1
    • xen-tools-debuginfo-4.9.0_12-3.15.1
    • xen-tools-domU-debuginfo-4.9.0_12-3.15.1

References: