Rule

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Sid
18196

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Summary:
This event is generated when an attempt is made to exploit a known vulnerability in Internet Explorer.

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Impact:
Denial of Service. Information disclosure. Loss of integrity. 

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Detailed Information:
Use-after-free vulnerability in the CSharedStyleSheet::Notify function in the Cascading Style Sheets (CSS) parser in mshtml.dll, as used in Microsoft Internet Explorer 7 and 8 and possibly other products, allows remote attackers to cause a denial of service (crash) and execute arbitrary code via multiple @import calls in a crafted document.

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Affected Systems:
Microsoft Internet Explorer.7
Microsoft Internet Explorer.8

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Attack Scenarios:


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Ease of Attack:
Simple. Exploits exist.

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False Positives:
None known.

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False Negatives:
None known.

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Corrective Action:
Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

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Contributors:
Sourcefire Vulnerability Research Team
This document was generated from data supplied by the National Vulnerability Database. A product of the National Institute of Standards and Technology.
For more information see http://nvd.nist.gov/

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Additional References:

NIST CVE-2010-3971:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-3971
  
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