/usr/lib/x86_64-linux-gnu/sane/libsane-canon.so.1 is in libsane 1.0.23-3ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/sane/libsane-canon.so.1.0.23
/usr/lib/x86_64-linux-gnu/sane/libsane-canon.so.1.0.23