Fix bug #67716 - Segfault in cdf.c
Fixed bug #67717 - segfault in dns_get_record
Fix bug #67730 - Null byte injection possible with imagexxx functions
fix potentially missing NUL termination
5.5.16
Revert "Fixed Bug #67724" See https://bugs.php.net/bug.php?id=67865

This reverts commit e4ff7f2ee346d641715694209e61704c9e815483.
NEWS for the last revert