PHP Other Vulnerability - CVE-2007-1883
PHP 4.0.0 through 4.4.6 and 5.0.0 through 5.2.1 allows context-dependent attackers to read arbitrary memory locations via an interruption that triggers a user space error handler that changes a parameter to an arbitrary pointer as demonstrated via the iptcembed function which calls certain convert_to_ functions with its input parameters.