CVE ID:	CVE-2011-4415
Description:	The ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, does not restrict the size of values of environment variables, which allows local users to cause a denial of service (memory consumption or NULL pointer dereference) via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, related to (1) the "len +=" statement and (2) the apr_pcalloc function call, a different vulnerability than CVE-2011-3607.
Test IDs:	1.3.6.1.4.1.25623.1.0.103333
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2011-4415 HPdes Security Advisory: HPSBMU02786 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 HPdes Security Advisory: SSRT100877 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/ http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/DemoExploit.html