1. Ubuntu Security Notices
  2. USN-2368-1

USN-2368-1: OpenVPN vulnerability

Publication date

2 October 2014

Overview

OpenVPN could be made to expose sensitive information over the network.

Releases

Packages

  • openvpn - virtual private network software

Details

It was discovered that OpenVPN incorrectly handled HMAC comparisons when
running in UDP mode. If a remote attacker were able to perform a
machine-in-the-middle attack, this flaw could possibly be used to perform a
plaintext recovery attack.

It was discovered that OpenVPN incorrectly handled HMAC comparisons when
running in UDP mode. If a remote attacker were able to perform a
machine-in-the-middle attack, this flaw could possibly be used to perform a
plaintext recovery attack.

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
12.04 precise openvpn –  2.2.1-8ubuntu1.3

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References

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