/usr/share/php/Horde/ is in php-horde-perms 2.1.7-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Horde/Perms/
/usr/share/php/Horde/Perms.php
/usr/share/php/Horde/Perms/Base.php
/usr/share/php/Horde/Perms/Exception.php
/usr/share/php/Horde/Perms/Null.php
/usr/share/php/Horde/Perms/Permission/
/usr/share/php/Horde/Perms/Permission.php
/usr/share/php/Horde/Perms/Permission/Kolab/
/usr/share/php/Horde/Perms/Permission/Kolab.php
/usr/share/php/Horde/Perms/Permission/Kolab/Acl/
/usr/share/php/Horde/Perms/Permission/Kolab/Acl.php
/usr/share/php/Horde/Perms/Permission/Kolab/Acl/Anonymous.php
/usr/share/php/Horde/Perms/Permission/Kolab/Acl/Anyone.php
/usr/share/php/Horde/Perms/Permission/Kolab/Acl/Group.php
/usr/share/php/Horde/Perms/Permission/Kolab/Acl/User.php
/usr/share/php/Horde/Perms/Permission/Kolab/AclIterator.php
/usr/share/php/Horde/Perms/Permission/Kolab/Element/
/usr/share/php/Horde/Perms/Permission/Kolab/Element.php
/usr/share/php/Horde/Perms/Permission/Kolab/Element/Default.php
/usr/share/php/Horde/Perms/Permission/Kolab/Element/Group.php
/usr/share/php/Horde/Perms/Permission/Kolab/Element/Guest.php
/usr/share/php/Horde/Perms/Permission/Kolab/Element/User.php
/usr/share/php/Horde/Perms/Permission/Kolab/ElementIterator.php
/usr/share/php/Horde/Perms/Permission/Kolab/Storage.php
/usr/share/php/Horde/Perms/Permission/Sql.php
/usr/share/php/Horde/Perms/Sql.php
/usr/share/php/Horde/Perms/Translation.php