/usr/lib/libqglviewer.so.2 is in libqglviewer-qt3-2 2.3.4-4ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libqglviewer-qt3.so.2.3.4
/usr/lib/libqglviewer-qt3.so.2.3.4