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-rw-r--r--ext/spl/tests/bug70365.phpt50
1 files changed, 50 insertions, 0 deletions
diff --git a/ext/spl/tests/bug70365.phpt b/ext/spl/tests/bug70365.phpt
new file mode 100644
index 0000000000..c18110e3ca
--- /dev/null
+++ b/ext/spl/tests/bug70365.phpt
@@ -0,0 +1,50 @@
+--TEST--
+SPL: Bug #70365 use-after-free vulnerability in unserialize() with SplObjectStorage
+--FILE--
+<?php
+class obj {
+ var $ryat;
+ function __wakeup() {
+ $this->ryat = 1;
+ }
+}
+
+$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"
+}