/usr/share/php/Horde/Kolab/Storage/List/ is in php-horde-kolab-storage 2.2.1-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Horde/Kolab/Storage/List/Cache.php
/usr/share/php/Horde/Kolab/Storage/List/Exception.php
/usr/share/php/Horde/Kolab/Storage/List/Manipulation/
/usr/share/php/Horde/Kolab/Storage/List/Manipulation.php
/usr/share/php/Horde/Kolab/Storage/List/Manipulation/Base.php
/usr/share/php/Horde/Kolab/Storage/List/Manipulation/Decorator/
/usr/share/php/Horde/Kolab/Storage/List/Manipulation/Decorator/Log.php
/usr/share/php/Horde/Kolab/Storage/List/Manipulation/Listener.php
/usr/share/php/Horde/Kolab/Storage/List/Query/
/usr/share/php/Horde/Kolab/Storage/List/Query/Acl/
/usr/share/php/Horde/Kolab/Storage/List/Query/Acl.php
/usr/share/php/Horde/Kolab/Storage/List/Query/Acl/Base.php
/usr/share/php/Horde/Kolab/Storage/List/Query/Acl/Cache.php
/usr/share/php/Horde/Kolab/Storage/List/Query/ActiveSync/
/usr/share/php/Horde/Kolab/Storage/List/Query/ActiveSync.php
/usr/share/php/Horde/Kolab/Storage/List/Query/ActiveSync/Base.php
/usr/share/php/Horde/Kolab/Storage/List/Query/ActiveSync/Cache.php
/usr/share/php/Horde/Kolab/Storage/List/Query/List/
/usr/share/php/Horde/Kolab/Storage/List/Query/List.php
/usr/share/php/Horde/Kolab/Storage/List/Query/List/Base.php
/usr/share/php/Horde/Kolab/Storage/List/Query/List/Cache/
/usr/share/php/Horde/Kolab/Storage/List/Query/List/Cache.php
/usr/share/php/Horde/Kolab/Storage/List/Query/List/Cache/Synchronization.php
/usr/share/php/Horde/Kolab/Storage/List/Query/List/Defaults/
/usr/share/php/Horde/Kolab/Storage/List/Query/List/Defaults.php
/usr/share/php/Horde/Kolab/Storage/List/Query/List/Defaults/Bail.php
/usr/share/php/Horde/Kolab/Storage/List/Query/List/Defaults/Log.php
/usr/share/php/Horde/Kolab/Storage/List/Query/Share/
/usr/share/php/Horde/Kolab/Storage/List/Query/Share.php
/usr/share/php/Horde/Kolab/Storage/List/Query/Share/Base.php
/usr/share/php/Horde/Kolab/Storage/List/Query/Share/Cache.php
/usr/share/php/Horde/Kolab/Storage/List/Synchronization/
/usr/share/php/Horde/Kolab/Storage/List/Synchronization.php
/usr/share/php/Horde/Kolab/Storage/List/Synchronization/Base.php
/usr/share/php/Horde/Kolab/Storage/List/Synchronization/Decorator/
/usr/share/php/Horde/Kolab/Storage/List/Synchronization/Decorator/Log.php
/usr/share/php/Horde/Kolab/Storage/List/Synchronization/Listener.php
/usr/share/php/Horde/Kolab/Storage/List/Tools.php