Directory Proxy Server (DPS) in Sun Java System Directory Server Enterprise Edition 6.0 through 6.3.1 does not properly handle multiple client connections within a short time window, which allows remote attackers to hijack the backend connection of an authenticated user, and obtain the privileges of this user, by making a client connection in opportunistic circumstances, related to "long binds," aka Bug Ids 6828462 and 6823593.
http://www.vupen.com/english/advisories/2009/3647
http://www.securitytracker.com/id?1023389
http://www.securityfocus.com/bid/37481
http://sunsolve.sun.com/search/document.do?assetkey=1-66-270789-1
http://sunsolve.sun.com/search/document.do?assetkey=1-21-141958-01-1