ZDI-07-075: Microsoft Internet Explorer Element Tags Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-07-075.html
December 11, 2007

-- CVE ID:
CVE-2007-5344

-- Affected Vendor:
Microsoft 

-- Affected Products:
Internet Explorer 6
Internet Explorer 7

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 5822. 
For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com 

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Microsoft Internet Explorer. User
interaction is required to exploit this vulnerability in that the
target must visit a malicious page.

The specific flaw exists in the handling of document objects that have
been created, modified, deleted then accessed by JavaScript. By storing
references to document nodes, then removing them by a separate
reference, the document model in memory becomes unstable. Accessing the
tags property while the document is in this unstable condition results
in a heap corruption, allowing the execution of arbitrary code.

-- Vendor Response:
Microsoft has issued an update to correct this vulnerability. More
details can be found at:

http://www.microsoft.com/technet/security/bulletin/ms07-069.mspx

-- Disclosure Timeline:
2007.07.20 - Vulnerability reported to vendor
2007.12.11 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by Peter Vreugdenhil.

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