Articles / Ubuntu: New Nova packages f…

Ubuntu: New Nova packages fix security vulnerabilities

Dan Prince discovered that Nova did not enforce quotas for security groups and rules added to security groups. An authenticated user could exploit this to cause a denial of service. Updated packages are available from security.ubuntu.com.

==========================================================================
Ubuntu Security Notice USN-1438-1
May 03, 2012

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

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

- Ubuntu 12.04 LTS
- Ubuntu 11.10

Summary:

Nova could be made to crash the system under certain conditions.

Software Description:
- nova: OpenStack Compute cloud infrastructure

Details:

Dan Prince discovered that Nova did not enforce quotas for security groups
and rules added to security groups. An authenticated user could exploit
this to cause a denial of service.

Update instructions:

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

Ubuntu 12.04 LTS:
python-nova 2012.1-0ubuntu2.1

Ubuntu 11.10:
python-nova 2011.3-0ubuntu6.6

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

References:
http://www.ubuntu.com/usn/usn-1438-1
CVE-2012-2101

Package Information:
https://launchpad.net/ubuntu/+source/nova/2012.1-0ubuntu2.1
https://launchpad.net/ubuntu/+source/nova/2011.3-0ubuntu6.6
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