Off-by-one buffer overflow in ModSecurity (mod_security) 1.7.4 for Apache 2.x, when SecFilterScanPost is enabled, allows remote attackers to execute arbitrary code via crafted POST requests.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15489
http://www.securityfocus.com/bid/9885
http://www.s-quadra.com/advisories/Adv-20040315.txt
http://www.kb.cert.org/vuls/id/779438