U radu programskog paketa Xen, distribuiranog s operacijskim sustavom Fedora 14, uočena je sigurnosna ranjivost koja može dovesti do neovlaštenog pristupa, stjecanja većih ovlasti u sustavu, pokretanja zlonamjernog programskog koda, pristupa osjetljivim informacijama te do DoS napada.

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Fedora Update Notification
FEDORA-2011-6914
2011-05-13 22:24:31
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Name        : xen
Product     : Fedora 14
Version     : 4.0.1
Release     : 11.fc14
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:

gain privileged access to base domain, or access to
xen configuration info. Lack of error checking could
allow DoS attack from guest. [CVE-2011-1583] Don't
require /usr/bin/qemu-nbd as it isn't used at present.
Fix issue with VGA passthrough (#694001)
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ChangeLog:

* Tue May 10 2011 Michael Young <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> - 4.0.1-11
- Overflows in kernel decompression can allow root on xen PV guest to gain
  privileged access to base domain, or access to xen configuration info.
  Lack of error checking could allow DoS attack from guest [CVE-2011-1583]
- Don't require /usr/bin/qemu-nbd as it isn't used at present.
- Fix issue with VGA passthrough (#694001)
* Mon Jan 31 2011 Michael Young <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> - 4.0.1-9
- Make libraries executable so that rpm gets dependencies right
* Sat Jan 29 2011 Michael Young <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> - 4.0.1-8
- Temporarily turn off some compile options so it will build on rawhide
* Fri Jan 28 2011 Michael Young <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> - 4.0.1-7
- ghost directories in /var/run (#656724)
- minor fixes to /usr/share/doc/xen-doc-4.?.?/misc/network_setup.txt (#653159)
  /etc/xen/scripts/network-route, /etc/xen/scripts/vif-common.sh (#669747)
  and /etc/sysconfig/modules/xen.modules (#656536)
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References:

  [ 1 ] Bug #694001 - Unable to use "VGA passthrough" function
        https://bugzilla.redhat.com/show_bug.cgi?id=694001
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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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