[SECURITY] Fedora 23 Update: xen-4.5.2-6.fc23

[updates at fedoraproject.org]

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Fedora Update Notification
FEDORA-2015-d8253e2b1d
2015-12-22 17:48:56.349575
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Name        : xen
Product     : Fedora 23
Version     : 4.5.2
Release     : 6.fc23
URL         : http://xen.org/
Summary     : Xen is a virtual machine monitor
Description :
This package contains the XenD daemon and xm command line
tools, needed to manage virtual machines running under the
Xen hypervisor

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Update Information:

paravirtualized drivers incautious about shared memory contents [XSA-155,
CVE-2015-8550] qemu-dm buffer overrun in MSI-X handling [XSA-164, CVE-2015-8554]
information leak in legacy x86 FPU/XMM initialization [XSA-165, CVE-2015-8555]
ioreq handling possibly susceptible to multiple read issue [XSA-166]
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References:

  [ 1 ] Bug #1290365 - xsa166 xen: ioreq handling possibly susceptible to multiple read issue (XSA-166)
        https://bugzilla.redhat.com/show_bug.cgi?id=1290365
  [ 2 ] Bug #1289129 - CVE-2015-8554 xsa164 xen: qemu-dm buffer overrun in MSI-X handling (XSA-164)
        https://bugzilla.redhat.com/show_bug.cgi?id=1289129
  [ 3 ] Bug #1289130 - CVE-2015-8555 xsa165 xen: information leak in legacy x86 FPU/XMM initialization (XSA-165)
        https://bugzilla.redhat.com/show_bug.cgi?id=1289130
  [ 4 ] Bug #1289125 - CVE-2015-8550 xsa155 xen: paravirtualized drivers incautious about shared memory contents (XSA-155)
        https://bugzilla.redhat.com/show_bug.cgi?id=1289125
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This update can be installed with the "yum" update program. Use
su -c 'yum update xen' at the command line.
For more information, refer to "Managing Software with yum",
available at https://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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