PHP Numeric Errors Vulnerability - CVE-2016-4070

DISPUTED Integer overflow in the php_raw_url_encode function in ext/standard/url.c in PHP before 5.5.34 5.6.x before 5.6.20 and 7.x before 7.0.5 allows remote attackers to cause a denial of service (application crash) via a long string to the rawurlencode function. NOTE: the vendor says quotNot sure if this qualifies as security issue (probably not).quot