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[USN-1730-1] OpenStack Keystone vulnerabilities

Posted on 21 February 2013
Ubuntu Security

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Ubuntu Security Notice USN-1730-1
February 20, 2013

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

- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

Keystone could be made to crash or expose sensitive information over the
network.

Software Description:
- keystone: OpenStack identity service

Details:

Nathanael Burton discovered that Keystone did not properly verify disable=
d
users. An authenticated but disabled user would continue to have access
rights that were removed. (CVE-2013-0282)

Jonathan Murray discovered that Keystone would allow XML entity processin=
g.
A remote unauthenticated attacker could exploit this to cause a denial of=

service via resource exhaustion. Authenticated users could also use this =
to
view arbitrary files on the Keystone server. (CVE-2013-1664, CVE-2013-166=
5)

Update instructions:

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

Ubuntu 12.10:
python-keystone 2012.2.1-0ubuntu1.2

Ubuntu 12.04 LTS:
python-keystone 2012.1+stable~20120824-a16a0ab9-0ubuntu=
2.5

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


References:
http://www.ubuntu.com/usn/usn-1730-1
CVE-2013-0282, CVE-2013-1664, CVE-2013-1665

Package Information:
https://launchpad.net/ubuntu/+source/keystone/2012.2.1-0ubuntu1.2

https://launchpad.net/ubuntu/+source/keystone/2012.1+stable~20120824-a16a=
0ab9-0ubuntu2.5





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