/usr/share/doc/linux-cloud-tools-4.15.0-33-generic/changelog.Debian.gz is in linux-cloud-tools-4.15.0-33-generic 4.15.0-33.36.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/linux-cloud-tools-4.15.0-33-generic/../linux-cloud-tools-4.15.0-33/changelog.Debian.gz