Подскажите, кто-нибудь пользовался данной багой?

Если наглядный пример использования?

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-1180

Nginx buffer underflow vulnerability

Buffer underflow in src/http/ngx_http_parse.c in nginx 0.1.0 through 0.5.37, 0.6.x before 0.6.39, 0.7.x before 0.7.62, and 0.8.x before 0.8.15 allows remote attackers to execute arbitrary code via crafted HTTP requests.

Affected items

Web Server

The impact of this vulnerability

Remote attackers may execute arbitrary code via crafted HTTP requests.