Ubuntu Security Notice USN-2430-1
2nd December, 2014
openvpn vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
OpenVPN could be made to crash if it received specially crafted network
traffic.
Software description
- openvpn
– virtual private network software
Details
Dragana Damjanovic discovered that OpenVPN incorrectly handled certain
control channel packets. An authenticated attacker could use this issue to
cause an OpenVPN server to crash, resulting in a denial of service.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 14.10:
-
openvpn
2.3.2-9ubuntu1.1
- Ubuntu 14.04 LTS:
-
openvpn
2.3.2-7ubuntu3.1
- Ubuntu 12.04 LTS:
-
openvpn
2.2.1-8ubuntu1.4
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.