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Internet Explorer HTML Object Memory Corruption and Remote Code Execution
n.runs-SA-2008.008 - Internet Explorer HTML Object Memory Corruption and Remote Code Execution
n.runs-SA-2008.008 - Internet Explorer HTML Object Memory Corruption and Remote Code Execution

n.runs AG
http://www.nruns.com/ security(at)nruns.com 
n.runs-SA-2008.008                                       21-October-2008


Vendor:             Microsoft
Affected Products:  Internet Explorer 6
                     Internet Explorer 7
                     Windows XP SP2 & SP3
                     Windows 2000 SP4
                     Windows 2003 SP1
Vulnerability:      Remote Code execution
Risk:               High

A remote code execution vulnerability exists in Internet Explorer due to 
accesses to uninitialized memory in certain cases of DTML constructs. As 
a result, memory may be corrupted in such a way that an attacker could 
execute arbitrary code in the context of the logged-on user.

An attacker could exploit the vulnerability by constructing a specially 
prepared Website, when a user views the Web page, the vulnerability 
could allow remote code execution. An attacker who successfully 
exploited this vulnerability could gain the same user rights as the 
logged-on user.

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


Vendor communication:

    2008/07/07   Thierry sends notification to Microsoft
    2008/07/07   Acknowledgement and Receipt
    2008/10/14   Microsoft publishes


Vulnerability discovered by Thierry Zoller

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