/usr/lib/x86_64-linux-gnu/libcddb.so is in libcddb2-dev 1.3.2-5fakesync1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libcddb.so.2.2.3
/usr/lib/x86_64-linux-gnu/libcddb.so.2.2.3