1. Ubuntu Security Notices
  2. USN-2315-1

USN-2315-1: serf vulnerability

Publication date

14 August 2014

Overview

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

Releases

Packages

  • 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 machine-in-the-middle attack to view
sensitive information or alter encrypted communications.

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 machine-in-the-middle attack to view
sensitive information or alter encrypted communications.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.04 trusty libserf-1-1 –  1.3.3-1ubuntu0.1
12.04 precise libserf1 –  1.0.0-2ubuntu0.1

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References

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