ZDI-10-197: Microsoft Internet Explorer Stylesheet PrivateFind Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-197
October 12, 2010

-- CVE ID:
CVE-2010-3328

-- CVSS:
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)

-- Affected Vendors:
Microsoft

-- Affected Products:
Microsoft Internet Explorer

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10543.
For further product information on the TippingPoint IPS, visit:

    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 or open a malicious file.

The specific flaw exists within the function CAttrArray::PrivateFind as
defined in mshtml.dll. If a specific property of a stylesheet object is
set, the code within mshtml can be forced to free an object which is
subsequently accessed later. This can be leveraged by an attacker to
execute remote code under the context of the user running the browser.

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

http://www.microsoft.com/technet/security/bulletin/MS10-071.mspx

-- Disclosure Timeline:
2010-06-08 - Vulnerability reported to vendor
2010-10-12 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Peter Vreugdenhil ( http://vreugdenhilresearch.nl )

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