/usr/lib/x86_64-linux-gnu/visir-4.3.0/libvisir.so is in cpl-plugin-visir 4.3.0+dfsg1-1+b1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/visir-4.3.0/libvisir.so.0.0.0
/usr/lib/x86_64-linux-gnu/visir-4.3.0/libvisir.so.0.0.0