Summary
Ubuntu Update for Linux kernel vulnerabilities USN-612-10
Solution
Please Install the Updated Packages.
Insight
USN-612-3 addressed a weakness in OpenSSL certificate and key generation in OpenVPN by adding checks for vulnerable certificates and keys to OpenVPN. A regression was introduced in OpenVPN when using TLS with password protected certificates which caused OpenVPN to not start when used with applications such as NetworkManager.
Original advisory details:
A weakness has been discovered in the random number generator used by OpenSSL on Debian and Ubuntu systems. As a result of this weakness, certain encryption keys are much more common than they should be, such that an attacker could guess the key through a brute-force attack given minimal knowledge of the system. This particularly affects the use of encryption keys in OpenSSH, OpenVPN and SSL certificates.
Affected
openvpn regression on Ubuntu 7.04 ,
Ubuntu 7.10 ,
Ubuntu 8.04 LTS
