Heap-based buffer overflow in the Client Trust application (clntrust.exe) in Novell BorderManager 3.8 before Update 1.5 allows remote attackers to execute arbitrary code via a validation request in which the Novell tree name is not properly delimited with a wide-character backslash or NULL character.
The ClientTrust program in Novell BorderManager does not properly verify the origin of authentication requests, which could allow remote attackers to impersonate another user by replaying the authentication requests and responses from port 3024 of the victim's machine.