sapi/cgi/cgi_main.c in PHP before 5.3.13 and 5.4.x before 5.4.3, when configured as a CGI script (aka php-cgi), does not properly handle query strings that lack an = (equals sign) character, which allows remote attackers to cause a denial of service (resource consumption) by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the βTβ case. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-1823.
lists.opensuse.org/opensuse-security-announce/2012-06/msg00004.html
lists.opensuse.org/opensuse-security-announce/2012-07/msg00003.html
secunia.com/advisories/49014
www.php.net/archive/2012.php#id2012-05-08-1
www.php.net/ChangeLog-5.php#5.4.3
bugs.php.net/bug.php?id=61910
bugs.php.net/patch-display.php?bug_id=61910&patch=CVE-2012-1823.patch&revision=1336251592&display=1
h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03839862