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Ubuntu Security Notice USN-1501-1

Ubuntu Security Notice USN-1501-1
Posted Jul 12, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1501-1 - Dan Prince discovered that the Nova scheduler, when using DifferentHostFilter or SameHostFilter, would make repeated database instance lookup calls based on passed scheduler hints. An authenticated attacker could use this to cause a denial of service.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2012-3371
MD5 | be11a537db704bcc63c6a5fda852b9bd

Ubuntu Security Notice USN-1501-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-1501-1
July 11, 2012

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

- Ubuntu 12.04 LTS

Summary:

Nova could be made to not respond if passed specially crafted input.

Software Description:
- nova: OpenStack Compute cloud infrastructure

Details:

Dan Prince discovered that the Nova scheduler, when using
DifferentHostFilter or SameHostFilter, would make repeated database
instance lookup calls based on passed scheduler hints. An authenticated
attacker could use 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+stable~20120612-3ee026e-0ubuntu1.2

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

References:
http://www.ubuntu.com/usn/usn-1501-1
CVE-2012-3371

Package Information:
https://launchpad.net/ubuntu/+source/nova/2012.1+stable~20120612-3ee026e-0ubuntu1.2
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