==========================================================================
Ubuntu Security Notice USN-2315-1
August 14, 2014

serf vulnerability
==========================================================================

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

– Ubuntu 14.04 LTS
– Ubuntu 12.04 LTS

Summary:

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

Software Description:
– serf: high-performance asynchronous HTTP client library

Details:

Ben Reser discovered that serf did not correctly handle SSL certificates
with NUL bytes in the CommonName or SubjectAltNames fields. A remote
attacker could exploit this to perform a man in the middle attack to view
sensitive information or alter encrypted communications.

Update instructions:

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

Ubuntu 14.04 LTS:
libserf-1-1 1.3.3-1ubuntu0.1

Ubuntu 12.04 LTS:
libserf1 1.0.0-2ubuntu0.1

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

References:
http://www.ubuntu.com/usn/usn-2315-1
CVE-2014-3504

Package Information:
https://launchpad.net/ubuntu/+source/serf/1.3.3-1ubuntu0.1
https://launchpad.net/ubuntu/+source/serf/1.0.0-2ubuntu0.1

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