/usr/lib/libgdal1.7.0.so.1 is in libgdal1-1.7.0 1.7.3-6ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libgdal1.7.0.so.1.14.3
/usr/lib/libgdal1.7.0.so.1.14.3