/usr/lib/x86_64-linux-gnu/libxmlezout.so is in libxmlezout5-dev 1.06.1-10.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libxmlezout.so.4
/usr/lib/x86_64-linux-gnu/libxmlezout.so.4