/usr/lib/libgrss-1.0.so.0 is in libgrss-1.0-0 0.5.0-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libgrss-1.0.so.0.0.0
/usr/lib/libgrss-1.0.so.0.0.0