USN-2450-1: strongSwan vulnerability
Ubuntu Security Notice USN-2450-1
5th January, 2015
strongswan vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.10
- Ubuntu 14.04 LTS
Summary
strongSwan could be made to crash if it received specially crafted network traffic.
Software description
- strongswan - IPsec VPN solution
Details
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.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 14.10:
- strongswan-ike 5.1.2-0ubuntu3.2
- Ubuntu 14.04 LTS:
- strongswan-ike 5.1.2-0ubuntu2.2
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.