/usr/lib/libCEGUIOgreRenderer-0.so.2 is in libcegui-mk2-0.8.4 0.8.4+dfsg-4ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libCEGUIOgreRenderer-0.so.2.3.0
/usr/lib/libCEGUIOgreRenderer-0.so.2.3.0