/usr/lib/x86_64-linux-gnu/libmunge.so.2 is in libmunge2 0.5.12-1+b1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libmunge.so.2.0.0
/usr/lib/x86_64-linux-gnu/libmunge.so.2.0.0