This file is indexed.

/usr/lib/x86_64-linux-gnu/libdb_stl.so is in libdb6.0-stl-dev 6.0.19-3ubuntu1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/x86_64-linux-gnu/libdb_stl-6.0.so