/usr/lib/x86_64-linux-gnu/libgtk-vnc-2.0.so.0 is in libgtk-vnc-2.0-0 0.5.3-1.3ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgtk-vnc-2.0.so.0.0.2
/usr/lib/x86_64-linux-gnu/libgtk-vnc-2.0.so.0.0.2