USN-2315-1: serf vulnerability

Releases

• Ubuntu 14.04 ESM
• Ubuntu 12.04

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.

Update instructions

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

Ubuntu 14.04

• libserf-1-1 - 1.3.3-1ubuntu0.1

Ubuntu 12.04

• libserf1 - 1.0.0-2ubuntu0.1

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

References

• CVE-2014-3504