Security update for Xen (important)

Xen was updated to fix the following security issues:

   * CVE-2016-2841: net: ne2000: infinite loop in ne2000_receive
     (bsc#969351)
   * CVE-2016-2391: usb: multiple eof_timers in ohci module leads to null
     pointer dereference (bsc#967101)
   * CVE-2016-2270: x86: inconsistent cachability flags on guest mappings
     (XSA-154) (bsc#965315)
   * CVE-2016-2271: VMX: guest user mode may crash guest with
     non-canonical RIP (XSA-170) (bsc#965317)
   * CVE-2015-5278: Infinite loop in ne2000_receive() function
     (bsc#964947)
   * CVE-2014-0222: qcow1: validate L2 table size to avoid integer
     overflows (bsc#964925)
   * CVE-2014-7815: vnc: insufficient bits_per_pixel from the client
     sanitization (bsc#962627)
   * CVE-2015-8743: ne2000: OOB memory access in ioport r/w functions
     (bsc#960726)

Security Issues:

   * CVE-2016-2841
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2841">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2841</a>&gt;
   * CVE-2016-2391
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2391">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2391</a>&gt;
   * CVE-2016-2270
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2270">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2270</a>&gt;
   * CVE-2016-2271
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2271">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2271</a>&gt;
   * CVE-2015-5278
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5278">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5278</a>&gt;
   * CVE-2014-0222
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0222">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0222</a>&gt;
   * CVE-2014-7815
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7815">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7815</a>&gt;
   * CVE-2015-8743
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8743">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8743</a>&gt;