/lib/x86_64-linux-gnu/libdbus-1.so.3 is in libdbus-1-3 1.6.18-0ubuntu4.4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /lib/x86_64-linux-gnu/libdbus-1.so.3.7.6
/lib/x86_64-linux-gnu/libdbus-1.so.3.7.6