[SECURITY] Fedora 20 Update: xen-4.3.1-9.fc20

[updates at fedoraproject.org]

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Fedora Update Notification
FEDORA-2014-2170
2014-02-08 04:05:51
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Name        : xen
Product     : Fedora 20
Version     : 4.3.1
Release     : 9.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:

three security fixes:
integer overflow in several XSM/Flask hypercalls [XSA-84],
Off-by-one error in FLASK_AVC_CACHESTAT hypercall [XSA-85],
libvchan failure handling malicious ring indexes [XSA-86]
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ChangeLog:

* Thu Feb  6 2014 Michael Young <m.a.young at durham.ac.uk> - 4.3.1-9
- integer overflow in several XSM/Flask hypercalls [XSA-84]
- Off-by-one error in FLASK_AVC_CACHESTAT hypercall [XSA-85]
- libvchan failure handling malicious ring indexes [XSA-86]
* Fri Jan 24 2014 Michael Young <m.a.young at durham.ac.uk> - 4.3.1-8
- PHYSDEVOP_{prepare,release}_msix exposed to unprivileged pv guests
    [XSA-87, CVE-2014-1666] (#1058398)
* Thu Jan 23 2014 Michael Young <m.a.young at durham.ac.uk> - 4.3.1-7
- Out-of-memory condition yielding memory corruption during IRQ setup
    [XSA-83, CVE-2014-1642] (#1057142)
* 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 #1062326 - CVE-2014-1891 CVE-2014-1892 CVE-2014-1893 CVE-2014-1894 xen: integer overflow in several XSM/Flask hypercalls (xsa-84)
        https://bugzilla.redhat.com/show_bug.cgi?id=1062326
  [ 2 ] Bug #1062329 - CVE-2014-1895 xen: Off-by-one error in FLASK_AVC_CACHESTAT hypercall (xsa-85)
        https://bugzilla.redhat.com/show_bug.cgi?id=1062329
  [ 3 ] Bug #1062331 - CVE-2014-1896 xen: libvchan failure handling malicious ring indexes (xsa-86)
        https://bugzilla.redhat.com/show_bug.cgi?id=1062331
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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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