Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2017:2420-1
Rating: important
References: #1027519 #1055695 #1056278 #1056280 #1056281 #1056282 #1057358
Affected Products:
  • SUSE Linux Enterprise Software Development Kit 12-SP3
  • SUSE Linux Enterprise Server 12-SP3
  • SUSE Linux Enterprise Desktop 12-SP3

  • An update that solves four vulnerabilities and has three fixes is now available.


    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 Security Update use YaST online_update.
    Alternatively you can run the command listed for your product:

    • SUSE Linux Enterprise Software Development Kit 12-SP3:
      zypper in -t patch SUSE-SLE-SDK-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 Desktop 12-SP3:
      zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2017-1500=1

    To bring your system up-to-date, use "zypper patch".

    Package List:

    • 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 12-SP3 (x86_64):
      • xen-4.9.0_12-3.15.1
      • xen-debugsource-4.9.0_12-3.15.1
      • xen-doc-html-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-libs-debuginfo-32bit-4.9.0_12-3.15.1
      • xen-libs-debuginfo-4.9.0_12-3.15.1
      • xen-tools-4.9.0_12-3.15.1
      • xen-tools-debuginfo-4.9.0_12-3.15.1
      • xen-tools-domU-4.9.0_12-3.15.1
      • xen-tools-domU-debuginfo-4.9.0_12-3.15.1
    • SUSE Linux Enterprise Desktop 12-SP3 (x86_64):
      • xen-4.9.0_12-3.15.1
      • xen-debugsource-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-libs-debuginfo-32bit-4.9.0_12-3.15.1
      • xen-libs-debuginfo-4.9.0_12-3.15.1