PHP NULL Pointer Dereference Vulnerability - CVE-2018-14884
An issue was discovered in PHP 7.0.x before 7.0.27 7.1.x before 7.1.13 and 7.2.x before 7.2.1. Inappropriately parsing an HTTP response leads to a segmentation fault because http_header_value in ext/standard/http_fopen_wrapper.c can be a NULL value that is mishandled in an atoi call.