/usr/lib32/libmpxwrappers.so.2 is in lib32mpx2 6.3.0-18+deb9u1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib32/libmpxwrappers.so.2.0.0
/usr/lib32/libmpxwrappers.so.2.0.0