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[USN-1465-1] Ubuntu One Client vulnerability

Posted on 06 June 2012
Ubuntu Security

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Ubuntu Security Notice USN-1465-1
June 06, 2012

ubuntuone-client vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- 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:

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 12.04 LTS:
python-ubuntuone-client 3.0.0-0ubuntu1.1

Ubuntu 11.10:
python-ubuntuone-client 2.0.1-0ubuntu1.1

Ubuntu 11.04:
python-ubuntuone-client 1.6.2-0ubuntu2.1

Ubuntu 10.04 LTS:
python-ubuntuone-client 1.2.2-0ubuntu2.2

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

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

Package Information:
https://launchpad.net/ubuntu/+source/ubuntuone-client/3.0.0-0ubuntu1.1
https://launchpad.net/ubuntu/+source/ubuntuone-client/2.0.1-0ubuntu1.1
https://launchpad.net/ubuntu/+source/ubuntuone-client/1.6.2-0ubuntu2.1
https://launchpad.net/ubuntu/+source/ubuntuone-client/1.2.2-0ubuntu2.2

 

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