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Ubuntu 11.10: USN-1464-1 Moderate: sso-client Man-In-The-Middle Risk

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Calendar Grey June 6, 2012
Scroller Ubuntu
Debian Security Alert DSA-1234-1 highlights a major vulnerability in the web server that may allow unauthorized access to sensitive information.
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:

- ubuntu-sso-client: Ubuntu Single Sign-On client

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 man-in-the-middle attack, this flaw could

be exploited to alter or compromise confidential information.

Topics%20covered

Topics Covered

security advisory moderate severity authentication issue ubuntu man-in-the-middle data exposure sso client

Update Instructions

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

Ubuntu 11.10:
  ubuntu-sso-client               1.4.1-0ubuntu1.1

Ubuntu 11.04:
  ubuntu-sso-client               1.2.1-0ubuntu2.1

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

References

https://ubuntu.com/security/notices/USN-1464-1

CVE-2011-4408

June 06, 2012

Topics%20covered

Topics Covered

security advisory moderate severity authentication issue ubuntu man-in-the-middle data exposure sso client

Package Information

https://launchpad.net/ubuntu/+source/ubuntu-sso-client/1.4.1-0ubuntu1.1
https://launchpad.net/ubuntu/+source/ubuntu-sso-client/1.2.1-0ubuntu2.1

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