Ubuntu Security Notice USN-2368-1
2nd October, 2014
openvpn vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 12.04 LTS
Summary
OpenVPN could be made to expose sensitive information over the network.
Software description
- 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
man-in-the-middle attack, this flaw could possibly be used to perform a
plaintext recovery attack.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 12.04 LTS:
-
openvpn
2.2.1-8ubuntu1.3
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.