The remote host is vulnerable to a denial-of-service attack.
The remote host is running a version of Sun OpenSSO Enterprise 8.1 earlier than Patch1 Update1. Such versions are potentially affected by a memory corruption vulnerability which an attacker could exploit to crash the affected service, or potentially execute arbitrary code through a specially crafted XML document.
Upgrade to Sun OpenSSO Enterprise 8.0 Patch1 Update1. This may require different patches depending on your installation type.