Ubuntu Security Notice USN-2811-1
16th November, 2015
strongswan vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 15.10
- Ubuntu 15.04
- Ubuntu 14.04 LTS
Summary
strongSwan could be made to bypass authentication.
Software description
- strongswan
– IPsec VPN solution
Details
It was discovered that the strongSwan eap-mschapv2 plugin incorrectly
handled state. A remote attacker could use this issue to bypass
authentication.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 15.10:
-
strongswan-plugin-eap-mschapv2
5.1.2-0ubuntu6.2
- Ubuntu 15.04:
-
strongswan-plugin-eap-mschapv2
5.1.2-0ubuntu5.3
- Ubuntu 14.04 LTS:
-
strongswan-plugin-eap-mschapv2
5.1.2-0ubuntu2.4
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.