Domino 8.5 fixpack 1 Heap Overflow via DOS attack
Just saw this issue pop up on my crawlers.
http://intevydis.blogspot.com/2010/01/lotus-domino-7-probably-8-ldap-heap.html
No indication if this is specific to a particular operating system. Secunia, vulnerability intelligence provider, rates this as a moderately critical issue. It is currently unpatched.