==========================================================================
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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