Security update for Xen (important)

Xen was updated to fix the following vulnerabilities:

   * CVE-2014-0222: Qcow1 L2 table size integer overflows (bsc#877642)
   * CVE-2015-4037: Insecure temporary file use in /net/slirp.c
     (bsc#932267)
   * CVE-2015-5239: Integer overflow in vnc_client_read() and
     protocol_client_msg() (bsc#944463)
   * CVE-2015-7504: Heap buffer overflow vulnerability in pcnet emulator
     (XSA-162, bsc#956411)
   * CVE-2015-7971: Some pmu and profiling hypercalls log without rate
     limiting (XSA-152, bsc#950706)
   * CVE-2015-8104: Guest to host DoS by triggering an infinite loop in
     microcode via #DB exception (bsc#954405)
   * CVE-2015-5307: Guest to host DOS by intercepting #AC (XSA-156,
     bsc#953527)
   * CVE-2015-8339: XENMEM_exchange error handling issues (XSA-159,
     bsc#956408)
   * CVE-2015-8340: XENMEM_exchange error handling issues (XSA-159,
     bsc#956408)
   * CVE-2015-7512: Buffer overflow in pcnet's non-loopback mode
     (bsc#962360)
   * CVE-2015-8550: Paravirtualized drivers incautious about shared
     memory contents (XSA-155, bsc#957988)
   * CVE-2015-8504: Avoid floating point exception in vnc support
     (bsc#958493)
   * CVE-2015-8555: Information leak in legacy x86 FPU/XMM initialization
     (XSA-165, bsc#958009)
   * Ioreq handling possibly susceptible to multiple read issue (XSA-166,
     bsc#958523)

Security Issues:

   * 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-2015-4037
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4037">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4037</a>&gt;
   * CVE-2015-5239
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5239">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5239</a>&gt;
   * CVE-2015-7504
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7504">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7504</a>&gt;
   * CVE-2015-7971
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7971">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7971</a>&gt;
   * CVE-2015-8104
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8104">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8104</a>&gt;
   * CVE-2015-5307
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5307">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5307</a>&gt;
   * CVE-2015-8339
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8339">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8339</a>&gt;
   * CVE-2015-8340
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8340">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8340</a>&gt;
   * CVE-2015-7512
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7512">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7512</a>&gt;
   * CVE-2015-8550
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8550">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8550</a>&gt;
   * CVE-2015-8504
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8504">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8504</a>&gt;
   * CVE-2015-8555
     &lt;<a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8555">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8555</a>&gt;