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Ubuntu Security Notice USN-2628-1
June 08, 2015

strongswan vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 15.04
– Ubuntu 14.10
– Ubuntu 14.04 LTS

Summary:

strongSwan could be made to expose sensitive information over the network.

Software Description:
– strongswan: IPsec VPN solution

Details:

Alexander E. Patrakov discovered that strongSwan incorrectly handled
certain IKEv2 setups. A malicious server could possibly use this issue to
obtain user credentials.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 15.04:
strongswan-ike 5.1.2-0ubuntu5.2

Ubuntu 14.10:
strongswan-ike 5.1.2-0ubuntu3.3

Ubuntu 14.04 LTS:
strongswan-ike 5.1.2-0ubuntu2.3

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2628-1
CVE-2015-4171

Package Information:
https://launchpad.net/ubuntu/+source/strongswan/5.1.2-0ubuntu5.2
https://launchpad.net/ubuntu/+source/strongswan/5.1.2-0ubuntu3.3
https://launchpad.net/ubuntu/+source/strongswan/5.1.2-0ubuntu2.3

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