/usr/lib/x86_64-linux-gnu/libtiff.so.5 is in libtiff5 4.0.9-5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libtiff.so.5.3.0
/usr/lib/x86_64-linux-gnu/libtiff.so.5.3.0