/usr/lib/x86_64-linux-gnu/libglobus_gridftp_server_control.so.0 is in libglobus-gridftp-server-control0 4.2-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libglobus_gridftp_server_control.so.0.4.2