Fedora 22: xen Security Update

    Date21 Apr 2015
    CategoryFedora
    105
    Posted ByLinuxSecurity Advisories
    Long latency MMIO mapping operations are not preemptible [XSA-125, CVE-2015-2752] Unmediated PCI command register access in qemu [XSA-126, CVE-2015-2756] Certain domctl operations may be abused to lock up the host [XSA-127, CVE-2015-2751]
    --------------------------------------------------------------------------------
    Fedora Update Notification
    FEDORA-2015-5295
    2015-04-02 00:25:59
    --------------------------------------------------------------------------------
    
    Name        : xen
    Product     : Fedora 22
    Version     : 4.5.0
    Release     : 7.fc22
    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
    
    --------------------------------------------------------------------------------
    Update Information:
    
    Long latency MMIO mapping operations are not preemptible [XSA-125, CVE-2015-2752]
    Unmediated PCI command register access in qemu [XSA-126, CVE-2015-2756]
    Certain domctl operations may be abused to lock up the host [XSA-127, CVE-2015-2751]
    --------------------------------------------------------------------------------
    References:
    
      [ 1 ] Bug #1203732 - CVE-2015-2752 xen: long latency MMIO mapping operations are not preemptible (xsa125)
            https://bugzilla.redhat.com/show_bug.cgi?id=1203732
      [ 2 ] Bug #1203737 - CVE-2015-2756 xen: unmediated PCI command register access in qemu (xsa126)
            https://bugzilla.redhat.com/show_bug.cgi?id=1203737
      [ 3 ] Bug #1203745 - CVE-2015-2751 xen: certain domctl operations may be abused to lock up the host
            https://bugzilla.redhat.com/show_bug.cgi?id=1203745
    --------------------------------------------------------------------------------
    
    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 http://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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