[SECURITY] Fedora 20 Update: xen-4.3.1-6.fc20

[updates at fedoraproject.org]

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Fedora Update Notification
FEDORA-2013-23251
2013-12-12 16:14:07
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Name        : xen
Product     : Fedora 20
Version     : 4.3.1
Release     : 6.fc20
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:

Disaggregated domain management security status update,
IOMMU TLB flushing may be inadvertently suppressed
Lock order reversal between page_alloc_lock and mm_rwlock,
Hypercalls exposed to privilege rings 1 and 2 of HVM guests
Insufficient TLB flushing in VT-d (iommu) code
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ChangeLog:

* Wed Dec 11 2013 Michael Young <m.a.young at durham.ac.uk> - 4.3.1-6
- Disaggregated domain management security status update [XSA-77]
- IOMMU TLB flushing may be inadvertently suppressed [XSA-80, CVE-2013-6400]
    (#1040024)
* Mon Dec  2 2013 Michael Young <m.a.young at durham.ac.uk> - 4.3.1-5
- HVM guest triggerable AMD CPU erratum may cause host hang
    [XSA-82, CVE-2013-6885]
* Tue Nov 26 2013 Michael Young <m.a.young at durham.ac.uk> - 4.3.1-4
- Lock order reversal between page_alloc_lock and mm_rwlock
    [XSA-74, CVE-2013-4553] (#1034925)
- Hypercalls exposed to privilege rings 1 and 2 of HVM guests
    [XSA-76, CVE-2013-4554] (#1034923)
* Thu Nov 21 2013 Michael Young <m.a.young at durham.ac.uk> - 4.3.1-3
- Insufficient TLB flushing in VT-d (iommu) code
    [XSA-78, CVE-2013-6375] (#1033149)
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References:

  [ 1 ] Bug #1035811 - CVE-2013-6400 xen: IOMMU TLB flushing may be inadvertently suppressed
        https://bugzilla.redhat.com/show_bug.cgi?id=1035811
  [ 2 ] Bug #1029120 - CVE-2013-4553 kernel: xen: lock order reversal between page_alloc_lock and mm_rwlock
        https://bugzilla.redhat.com/show_bug.cgi?id=1029120
  [ 3 ] Bug #1029111 - CVE-2013-4554 kernel: xen: hypercalls exposed to privilege rings 1 and 2 of HVM guests
        https://bugzilla.redhat.com/show_bug.cgi?id=1029111
  [ 4 ] Bug #1033138 - CVE-2013-6375 xen: Insufficient TLB flushing in VT-d (iommu) code
        https://bugzilla.redhat.com/show_bug.cgi?id=1033138
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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 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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