The remote host is vulnerable to a Denial of Service (DoS) attack.
The remote host appears to be running a version of Apache 2.x that is older than 2.0.48. This version is vulnerable to a bug that may allow a rogue CGI to disable the httpd service by issuing over 4K of data to stderr. To exploit this flaw, an attacker would need the ability to upload a rogue CGI script to this server and to have it executed by the Apache daemon (httpd).
Upgrade to version 2.0.48 or higher.