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Ubuntu Security Notice USN-1772-1
March 20, 2013
A security issue affects these releases of Ubuntu and its derivatives:
Summary:
Under certain configurations, Keystone would allow unintended access over
the network.
Software Description:
Details:
Guang Yee discovered that Keystone would not always perform all
verification checks when configured to use PKI. If the keystone server was
configured to use PKI and services or users requested online verification,
an attacker could potentially exploit this to bypass revocation checks.
Keystone uses UUID tokens by default in Ubuntu.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.10:
python-keystone 2012.2.1-0ubuntu1.3
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1772-1
CVE-2013-1865
Package Information:
https://launchpad.net/ubuntu/+source/keystone/2012.2.1-0ubuntu1.3
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