openvpn fails to start

["Steven O'Connor" <slackrse gmail com>]

After a recent update, if I attempt to start a vpn with network manager, it fails and the following is in syslog.

Aug 30 08:00:13 rax nm-openvpn[10105]: TUN/TAP device tun0 opened
Aug 30 08:00:13 rax nm-openvpn[10105]: /sbin/ifconfig tun0 10.8.141.6 pointopoint 10.8.141.5 mtu 1500
Aug 30 08:00:13 rax nm-openvpn[10105]: /usr/lib/network-manager-openvpn/nm-openvpn-service-openvpn-helper tun0 1500 1542 10.8.141.6 10.8.141.5 init
Aug 30 08:00:13 rax nm-openvpn[10105]: openvpn_execve: external program may not be called due to setting of --script-security level
Aug 30 08:00:13 rax nm-openvpn[10105]: script failed: external program fork failed
Aug 30 08:00:13 rax nm-openvpn[10105]: Exiting

What is the " --script-security level", and where can I set it?

TIA