PHP 5.4.35 is now released, and the new version is already available in custombuild. Quote from php.net:
Here is changelog: http://php.net/ChangeLog-5.php#5.4.35
4 security-related bugs were fixed in this release, including the fix for CVE-2014-3710. All PHP 5.4 users are encouraged to upgrade to this version.
Here is changelog: http://php.net/ChangeLog-5.php#5.4.35