Ubuntu Update for strongswan USN-2450-1

Summary
Check the version of strongswan
Solution
Please Install the Updated Packages.
Insight
Mike Daskalakis discovered that strongSwan incorrectly handled IKEv2 payloads that contained the Diffie-Hellman group 1025. A remote attacker could use this issue to cause the IKE daemon to crash, resulting in a denial of service.
Affected
strongswan on Ubuntu 14.10 , Ubuntu 14.04 LTS
Detection
Get the installed version with the help of detect NVT and check if the version is vulnerable or not.