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Alerts This Week
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Ubuntu 10.04 LTS USN-1465-3 Critical: Client Certificate Flaw

ubuntu
Calendar Grey June 6, 2012
Scroller Ubuntu
Confidential data risk might arise from deceptive certificates in Ubuntu One Client, as highlighted in USN-1465-3.
Fraudulent security certificates could allow sensitive information to be exposed when accessing the Internet.

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.

Topics%20covered

Topics Covered

security advisory software update man-in-the-middle privacy risk client certificate confidentiality issue ubuntu 10.04

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

https://ubuntu.com/security/notices/USN-1465-3

https://ubuntu.com/security/notices/USN-1465-1

CVE-2011-4409

Severity
critical
Lowest
Low
Medium
High
Critical

June 06, 2012

Topics%20covered

Topics Covered

security advisory software update man-in-the-middle privacy risk client certificate confidentiality issue ubuntu 10.04

Package Information

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

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