--TEST-- SPL: Bug #70365 use-after-free vulnerability in unserialize() with SplObjectStorage --FILE-- ryat = 1; } } $fakezval = ptr2str(1122334455); $fakezval .= ptr2str(0); $fakezval .= "\x00\x00\x00\x00"; $fakezval .= "\x01"; $fakezval .= "\x00"; $fakezval .= "\x00\x00"; $inner = 'x:i:1;O:8:"stdClass":0:{},i:1;;m:a:0:{}'; $exploit = 'a:5:{i:0;i:1;i:1;C:16:"SplObjectStorage":'.strlen($inner).':{'.$inner.'}i:2;O:3:"obj":1:{s:4:"ryat";R:3;}i:3;R:6;i:4;s:'.strlen($fakezval).':"'.$fakezval.'";}'; $data = unserialize($exploit); var_dump($data); function ptr2str($ptr) { $out = ''; for ($i = 0; $i < 8; $i++) { $out .= chr($ptr & 0xff); $ptr >>= 8; } return $out; } ?> --EXPECTF-- array(5) { [0]=> int(1) [1]=> &int(1) [2]=> object(obj)#%d (1) { ["ryat"]=> &int(1) } [3]=> int(1) [4]=> string(24) "%s" }