This new macro virus is not a true threat to the Open Office environment yet, as it's not in the wild currently.  Still, all environments must be carefully watched to ensure the best safety practices are in place.

Stardust - New POC macro virus designed to infect Open Office documents
http://secunia.com/virus_information/29582/xmldustar.a/

Stardust is a new proof-of-concept macro virus that affects StarOffice and OpenOffice (OO) Suites. This macro virus then proceeds to infect OO based document files. It is written in Star Basic. It affects systems running on Windows 98, ME, NT, 2000, XP, and Server 2003 with StarOffice/OpenOffice Suites installed.