Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2017:1081-1
Rating: important
References: #1022555 #1026636 #1027519 #1027570 #1028235 #1028655 #1029827 #1030144 #1030442
Affected Products:
  • SUSE Linux Enterprise Software Development Kit 11-SP4
  • SUSE Linux Enterprise Server 11-SP4
  • SUSE Linux Enterprise Debuginfo 11-SP4

  • An update that solves 5 vulnerabilities and has four fixes is now available.

    Description:


    This update for xen 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-2016-9603: A privileged user within the guest VM can cause a heap
    overflow in the device model process, potentially escalating their
    privileges to that of the device model process (bsc#1028655).
    - CVE-2017-6414: Memory leak in the vcard_apdu_new function in card_7816.c
    in libcacard allowed local guest OS users to cause a denial of service
    (host memory consumption) via vectors related to allocating a new APDU
    object (bsc#1027570).
    - 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).
    - CVE-2017-2633: The VNC display driver support was vulnerable to an
    out-of-bounds memory access issue. A user/process inside guest could use
    this flaw to cause DoS (bsc#1026636).

    These non-security issues were fixed:

    - bsc#1022555: Timeout in "execution of /etc/xen/scripts/block add"
    - bsc#1029827: Forward port xenstored

    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 11-SP4:
      zypper in -t patch sdksp4-xen-13069=1
    • SUSE Linux Enterprise Server 11-SP4:
      zypper in -t patch slessp4-xen-13069=1
    • SUSE Linux Enterprise Debuginfo 11-SP4:
      zypper in -t patch dbgsp4-xen-13069=1

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

    Package List:

    • SUSE Linux Enterprise Software Development Kit 11-SP4 (i586 x86_64):
      • xen-devel-4.4.4_16-54.1
    • SUSE Linux Enterprise Server 11-SP4 (i586 x86_64):
      • xen-kmp-default-4.4.4_16_3.0.101_97-54.1
      • xen-libs-4.4.4_16-54.1
      • xen-tools-domU-4.4.4_16-54.1
    • SUSE Linux Enterprise Server 11-SP4 (x86_64):
      • xen-4.4.4_16-54.1
      • xen-doc-html-4.4.4_16-54.1
      • xen-libs-32bit-4.4.4_16-54.1
      • xen-tools-4.4.4_16-54.1
    • SUSE Linux Enterprise Server 11-SP4 (i586):
      • xen-kmp-pae-4.4.4_16_3.0.101_97-54.1
    • SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):
      • xen-debuginfo-4.4.4_16-54.1
      • xen-debugsource-4.4.4_16-54.1

    References: