The flaw is in the Connector Module, a Netscape Server Application Programming Interface (NSAPI) plug-in that integrates the Sun One Web Server with the Application Server.
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An overly long URI (Uniform Resource Indicator) in an incoming HTTP (Hypertext Transfer Protocol) request handled by the module could cause a stack buffer overflow, @Stake said in an advisory note.
The flaw affects Sun One Application Server 6.0 and Sun One Application Server 6.5. A patch is available for version 6.5 at http://wwws.sun.com/software/download/products/3e3afb89.html.
No patch is available for version 6.0, according to @Stake, but there are a number of workarounds.
writing an NSAPI module to inspect the length of HTTP request URIs;
terminating the SSL (Secure Sockets Layer) session on a device before the Sun ONE Web server and installing an Intrusion Detection System (IDS) sensor to monitor the clear-text traffic;
terminating the SSL session on a reverse proxy that performs data validation on all HTTP request headers.