Ubuntu Security Notice USN-3339-2
7th August, 2017
A security issue affects these releases of Ubuntu and its
- Ubuntu 12.04 LTS
Several security issues were fixed in OpenVPN.
– virtual private network software
USN-3339-1 fixed several issues in OpenVPN. This update
provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Guido Vranken discovered that OpenVPN incorrectly handled an HTTP proxy
with NTLM authentication. A remote attacker could use this issue to cause
OpenVPN clients to crash, resulting in a denial of service, or possibly
expose sensitive memory contents. (CVE-2017-7520)
The problem can be corrected by updating your system to the following
To update your system, please follow these instructions:
In general, a standard system update will make all the necessary changes.