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==========================================================================
Ubuntu Security Notice USN-1465-3
June 06, 2012

ubuntuone-client regression
==========================================================================

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

- Ubuntu 10.04 LTS

Summary:

Fraudulent security certificates could allow sensitive information to
be exposed when accessing the Internet.

Software Description:
- ubuntuone-client: Ubuntu One client

Details:

USN-1465-1 fixed vulnerabilities in Ubuntu One Client. The update failed to
install on certain Ubuntu 10.04 LTS systems that had a legacy Python 2.5
package installed. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

 It was discovered that the Ubuntu One Client incorrectly validated server
 certificates when using HTTPS connections. If a remote attacker were able
 to perform a man-in-the-middle attack, this flaw could be exploited to
 alter or compromise confidential information.

Update instructions:

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

Ubuntu 10.04 LTS:
  python-ubuntuone-client         1.2.2-0ubuntu2.3

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

References:
  http://www.ubuntu.com/usn/usn-1465-3
  http://www.ubuntu.com/usn/usn-1465-1
  CVE-2011-4409

Package Information:
  https://launchpad.net/ubuntu/+source/ubuntuone-client/1.2.2-0ubuntu2.3



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