If you are running 5.3.9 without suhosin, you may want to consider upgrading.
http://forums.cpanel.net/f334/php-5-3-10-released-case-57077-case-57160-a-256142.html
http://www.php.net/archive/2012.php#id2012-02-02-1
http://forums.cpanel.net/f334/php-5-3-10-released-case-57077-case-57160-a-256142.html
http://www.php.net/archive/2012.php#id2012-02-02-1