GEN:SID 1:277
Message DOS Real Server template.html
Summary This event is generated when a remote attacker transmits a malformed request for a page on a RealNetworks RealServer port, which can indicate a Denial of Service (DoS) attack on the RealServer.
Impact The RealNetworks RealServer service will crash.
Detailed Information RealNetworks RealServer is a server application that serves streaming audio to clients. When an attacker sends a request for a template file in the /viewsource/ directory with an empty variable value, RealServer crashes.  
Affected Systems Systems running RealNetworks RealServer 7.0 with View Source functionality enabled.
Attack Scenarios An attacker sends an HTTP request for /viewsource/template.html? on a RealServer audio server. RealServer crashes, stopping audio transmission.
Ease of Attack Simple.
Corrective Action Upgrade to the latest version of the software or disable the View Source functionality. The vendor has issued an advisory, workarounds, and downloadable patches at http://service.real.com/help/faq/servgviewsrc.html.
Additional References RealNetworks
http://service.real.com/help/faq/servgviewsrc.html

Rule References bugtraq: 1288
cve: 2000-0474