CVE Request: PHP v7 - Code execution vulnerability

[Fourny Dimitri <fourny.d () gmail com>]

Hello,

An arbitrary code execution is possible in the function str_ireplace()
with PHP 7.
The vulnerability is in the function php_string_tolower().

Patch: http://git.php.net/?p=php-src.git;a=commit;h=6aeee47b2cd47915ccfa3b41433a3f57aea24dd5

Report: https://bugs.php.net/bug.php?id=70140

Could you please assign a CVE for this vulnerability? Thank you.

Regards, Dimitri Fourny.