The security hole was introduced by a Ubuntu-specfic patch to pam. The pam_motd-legal-notice patch was added in July 2009 due to https://bugs.launchpad.net/ubu

The security hole was introduced by a Ubuntu-specfic patch to pam. The pam_motd-legal-notice patch was added in July 2009 due to https://bugs.launchpad.net/ubuntu/+source/pam/+bug/399071 https://bugs.launchpad.net/ubuntu/+source/pam/+bug/399071