1--TEST-- 2SPL: Bug #70168 Use After Free Vulnerability in unserialize() with SplObjectStorage 3--FILE-- 4<?php 5$inner = 'x:i:1;O:8:"stdClass":0:{};m:a:0:{}'; 6$exploit = 'a:2:{i:0;C:16:"SplObjectStorage":'.strlen($inner).':{'.$inner.'}i:1;R:3;}'; 7 8$data = unserialize($exploit); 9 10for($i = 0; $i < 5; $i++) { 11 $v[$i] = 'hi'.$i; 12} 13 14var_dump($data); 15?> 16--EXPECTF-- 17array(2) { 18 [0]=> 19 object(SplObjectStorage)#%d (1) { 20 ["storage":"SplObjectStorage":private]=> 21 array(1) { 22 [0]=> 23 array(2) { 24 ["obj"]=> 25 object(stdClass)#2 (0) { 26 } 27 ["inf"]=> 28 NULL 29 } 30 } 31 } 32 [1]=> 33 int(1) 34} 35
