`getproperties` function creates massive property_type (ex.4294967295) that derives from unpacking '\xff\xff\xff\xff'.  The picture depicts s, offset, property_id, property_type, which are the inputs of `OleFileIO._parse_property()` respectively. The for-loop with 4294967295 iteraions are made in `OleFileIO._parse_property()` which occurs system and resource instability. Also, the bug in `getproperties` causes lots of function fail in the oletools as well.