Integer overflow in CGI scripts in Nagios 1.x before 1.4.1 and 2.x before 2.3.1 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a content length (Content-Length) HTTP header. NOTE: this is a different vulnerability than CVE-2006-2162.
https://exchange.xforce.ibmcloud.com/vulnerabilities/26454
http://www.vupen.com/english/advisories/2006/1822
http://www.securityfocus.com/bid/18059
http://www.nagios.org/development/changelog.php
http://www.gentoo.org/security/en/glsa/glsa-200605-07.xml
http://www.debian.org/security/2006/dsa-1072
http://secunia.com/advisories/20313