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==========================================================================
Ubuntu Security Notice USN-1734-1
February 21, 2013

nova vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10

Summary:

Nova could be made to crash if it received specially crafted input.

Software Description:
- nova: OpenStack Compute cloud infrastructure

Details:

Joshua Harlow discovered that Nova would allow XML entity processing. A
remote unauthenticated attacker could exploit this using the Nova API to
cause a denial of service via resource exhaustion. (CVE-2013-1664)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.10:
  python-nova
2012.2.1+stable-20121212-a99a802e-0ubuntu1.2

Ubuntu 12.04 LTS:
  python-nova
2012.1.3+stable-20120827-4d2a4afe-0ubuntu1.2

Ubuntu 11.10:
  python-nova                     2011.3-0ubuntu6.12

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1734-1
  CVE-2013-1664

Package Information:

https://launchpad.net/ubuntu/+source/nova/2012.2.1+stable-20121212-a99a802e-0ubuntu1.2

https://launchpad.net/ubuntu/+source/nova/2012.1.3+stable-20120827-4d2a4afe-0ubuntu1.2
  https://launchpad.net/ubuntu/+source/nova/2011.3-0ubuntu6.12





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