The PHP development team would like to announce the immediate availability of PHP 5.4.3 and PHP 5.3.13. All users are encouraged to upgrade to PHP 5.4.3 or PHP 5.3.13
The releases complete a fix for a vulnerability in CGI-based setups (CVE-2012-2311). Note: mod_php and php-fpm are not vulnerable to this attack.
PHP 5.4.3 fixes a buffer overflow vulnerability in the apache_request_headers() (CVE-2012-2329). The PHP 5.3 series is not vulnerable to this issue.