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Insecure Library Loading
Extremely critical

Microsoft Windows Animated Cursor Buffer Overflow Vulnerability

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Description


A vulnerability has been discovered in Microsoft Windows, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error within the handling of animated cursors and can be exploited to cause a stack-based buffer overflow via a specially crafted animated cursor file.

Successful exploitation allows execution of arbitrary code when a user e.g. visits a malicious website using Internet Explorer or opens a malicious e-mail message.

NOTE: The vulnerability is currently being actively exploited.


Solution:
Apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Discovered as a 0-day.

Independently reported by Alexander Sotirov, Determina Security Research.

Original Advisory:
Microsoft (KB925902):
http://www.microsoft.com/technet/security/Bulletin/MS07-017.mspx

Microsoft:
http://www.microsoft.com/technet/security/advisory/935423.mspx
http://blogs.technet.com/msrc/archive/2007/03/29/microsoft-security-advisory-935423-posted.aspx
http://blogs.technet.com/msrc/archive/2007/03/30/update-on-microsoft-security-advisory-935423.aspx
http://blogs.technet.com/msrc/archive/2007/04/01/latest-on-security-update-for-microsoft-security-advisory-935423.aspx

Determina:
http://www.determina.com/security_center/security_advisories/securityadvisory_0day_032907.asp
http://www.determina.com/security.research/vulnerabilities/ani-header.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft Windows Animated Cursor Buffer Overflow Vulnerability

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