tcmu-runner version 1.0.5 to 1.2.0 is vulnerable to a dbus triggered NULL pointer dereference in the tcmu-runner daemon's on_unregister_handler() function resulting in denial of service
https://github.com/open-iscsi/tcmu-runner/pull/200/commits/bb80e9c7a798f035768260ebdadffb6eb0786178