/usr/share/doc/linux-cloud-tools-3.13.0-153-generic/changelog.Debian.gz is in linux-cloud-tools-3.13.0-153-generic 3.13.0-153.203.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/linux-cloud-tools-3.13.0-153-generic/../linux-cloud-tools-3.13.0-153/changelog.Debian.gz