Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2015:0923-1
Rating: important
References: #922705 #922709 #927967 #929339
Affected Products:
  • SUSE Linux Enterprise Software Development Kit 12
  • SUSE Linux Enterprise Server 12
  • SUSE Linux Enterprise Desktop 12
    		•

    An update that fixes four vulnerabilities is now available.

    Description:


    XEN was updated to fix two security issues and bugs.

    Security issues fixed:
    * CVE-2015-3340: Xen did not initialize certain fields, which allowed
    certain remote service domains to obtain sensitive information from
    memory via a (1) XEN_DOMCTL_gettscinfo or (2)
    XEN_SYSCTL_getdomaininfolist request.

    * CVE-2015-2751: Xen, when using toolstack disaggregation, allowed remote
    domains with partial management control to cause a denial of service
    (host lock) via unspecified domctl operations.

    * CVE-2015-2752: The XEN_DOMCTL_memory_mapping hypercall in Xen, when
    using a PCI passthrough device, was not preemptable, which allowed local
    x86 HVM domain users to cause a denial of service (host CPU consumption)
    via a crafted request to the device model (qemu-dm).

    * CVE-2015-3456: Fixed a buffer overflow in the floppy drive emulation,
    which could be used to denial of service attacks or potential code
    execution against the host.

    Bugs fixed:
    - xentop: Fix memory leak on read failure

    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:
      zypper in -t patch SUSE-SLE-SDK-12-2015-206=1
    • SUSE Linux Enterprise Server 12:
      zypper in -t patch SUSE-SLE-SERVER-12-2015-206=1
    • SUSE Linux Enterprise Desktop 12:
      zypper in -t patch SUSE-SLE-DESKTOP-12-2015-206=1

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

    Package List:

    • SUSE Linux Enterprise Software Development Kit 12 (x86_64):
      • xen-debugsource-4.4.2_04-18.1
      • xen-devel-4.4.2_04-18.1
    • SUSE Linux Enterprise Server 12 (x86_64):
      • xen-4.4.2_04-18.1
      • xen-debugsource-4.4.2_04-18.1
      • xen-doc-html-4.4.2_04-18.1
      • xen-kmp-default-4.4.2_04_k3.12.39_47-18.1
      • xen-kmp-default-debuginfo-4.4.2_04_k3.12.39_47-18.1
      • xen-libs-32bit-4.4.2_04-18.1
      • xen-libs-4.4.2_04-18.1
      • xen-libs-debuginfo-32bit-4.4.2_04-18.1
      • xen-libs-debuginfo-4.4.2_04-18.1
      • xen-tools-4.4.2_04-18.1
      • xen-tools-debuginfo-4.4.2_04-18.1
      • xen-tools-domU-4.4.2_04-18.1
      • xen-tools-domU-debuginfo-4.4.2_04-18.1
    • SUSE Linux Enterprise Desktop 12 (x86_64):
      • xen-4.4.2_04-18.1
      • xen-debugsource-4.4.2_04-18.1
      • xen-kmp-default-4.4.2_04_k3.12.39_47-18.1
      • xen-kmp-default-debuginfo-4.4.2_04_k3.12.39_47-18.1
      • xen-libs-32bit-4.4.2_04-18.1
      • xen-libs-4.4.2_04-18.1
      • xen-libs-debuginfo-32bit-4.4.2_04-18.1
      • xen-libs-debuginfo-4.4.2_04-18.1

    References: