Unspecified vulnerability in mod_proxy_balancer for Apache HTTP Server 2.2.x before 2.2.7-dev, when running on Windows, allows remote attackers to trigger memory corruption via a long URL. NOTE: the vendor could not reproduce this issue
http://www.securityfocus.com/bid/27236
http://www.securityfocus.com/archive/1/486169/100/0/threaded