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.
Novell BorderManager 3.5 with PAT (Port-Address Translate) enabled allows remote attackers to cause a denial of service by filling the connection table with a large number of connection requests to hosts that do not have a specific route, which may be forwarded to the public interface.
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.