/usr/lib/libganglia.so is in libganglia1 3.6.0-1ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libganglia-3.6.0.so.0.0.0
/usr/lib/libganglia-3.6.0.so.0.0.0