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USN-1464-1: Ubuntu Single Sign On Client vulnerability

6 June 2012

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

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

Details

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

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 11.10
Ubuntu 11.04

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

References