IBM Lotus Notes Traveler before 8.5.1.2 allows remote authenticated users to cause a denial of service (resource consumption and sync outage) by syncing a large volume of data.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-4511
http://www-10.lotus.com/ldd/dominowiki.nsf/dx/Lotus_Notes_Traveler_851_FP3_Release_Notes