https://www.exploit-db.com/exploits/21792
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-200212-403

SavantWebserver是一款运行在Win32下的开放源代码WEB服务程序。SavantWebserver没有很好的处理Content-Length值，远程攻击者可以利用这个漏洞进行拒绝服务攻击。由于对Content-Length值缺少正确的检查，远程攻击者可以提供包含负值的Content-Length值发送给SavantWeb服务程序，可导致服务器程序崩溃，产生拒绝服务攻击。

source: http://www.securityfocus.com/bid/5707/info

Savant Webserver is prone to a denial of service attack, when processing a negative integer located in a users Content-Length value.

It should be noted that versions below 3.1 may also be vulnerable to this issue. 

GET / HTTP/1.0
Content-Length: -1

来源:BID
名称:5707
链接:http://www.securityfocus.com/bid/5707
来源:XF
名称:savant-neg-content-dos(10103)
链接:http://www.iss.net/security_center/static/10103.php
来源：NSFOCUS
名称：3529
链接：http://www.nsfocus.net/vulndb/3529