File: 2436.txt

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Rule:  

--
Sid:
2436

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Summary:
This event is generated when an attempt is made to access a file type
that may be subject to a known vulnerability in Microsoft Windows Explorer.

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Impact:
Denial of Service (DoS) possible execution of arbitrary code.

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Detailed Information:
When processing Windows Extended Metafile Format (.emf) files, Windows
Explorer sets a buffer size based on information in the header for the
file. If a malformed header is sent, it may be possible for an attacker
to cause a DoS condition to occur. It may also be possible for an
attacker to execute code of their choosing on a vulnerable host.

This issue may also affect Microsoft Windows Metafile Format (.wmf)
files also.

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Affected Systems:
	Microsoft Windows XP Home, Professional and Media Center Edition
	Microsoft Windows XP Home and Professional SP-1

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Attack Scenarios:
An attacker might supply a specially crafted request for such a file
that might cause the error condiion to occur.

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Ease of Attack:
Moderate/Difficult

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Apply the appropriate vendor supplied patches

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Contributors:
Sourcefire Research Team
Brian Caswell <bmc@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>

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Additional References:

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