USN-1381-1: Ubuntu One Couch vulnerability

1 March 2012

ubuntuone-couch vulnerability

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

  • Ubuntu 11.10


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

Software Description

  • ubuntuone-couch - Ubuntu One CouchDB


It was discovered that Ubuntu One Couch did not perform any server certificate validation 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 11.10
ubuntuone-couch - 0.3.0-0ubuntu2.1

To update your system, please follow these instructions:

After a standard system update you need to restart your session to make all the necessary changes.