A feature called the CS Audit Trail Proxy is installed by default with BorederManager 3.0 and 3.5 .This feature opens a listening port at port 2000, on both the internal and external interfaces. If a connection is made to this port and the 'enter' key hit a few times, the server will start experincing memory allocation problems. Eventually the server will have to be rebooted to restore normal functionality.
The CS Audit Trail Proxy is handled by CSATPRX.NLM
BorderManager contains a flaw that may allow a remote denial of service. The issue is triggered when a telnet connection is made to port 2000 and two <enter>s are sent, and will result in loss of availability for the platform.
Apply the upgrade as described in the vendor solution URL, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround(s): enable packet filtering on the server and block access to port 2000.