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 in the Microsoft Vector Graphics Rendering(VML) library (vgx.dll) when processing certain content in Vector Markup Language (VML) documents. This can be exploited to cause a stack-based buffer overflow by e.g. tricking a user into viewing a malicious VML document containing an overly long "fill" method inside a "rect" tag with the Internet Explorer browser.

Successful exploitation allows execution of arbitrary code with the privileges of the application using the vulnerable functionality in the library.

NOTE: The vulnerability is currently being actively exploited.

The vulnerability is confirmed on a fully patched Microsoft Windows XP SP2 system. Other versions may also be affected.

According to Microsoft, other unspecified vulnerabilities also exist.

Solution
Apply patches.
Further details available to Secunia VIM customers

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

Sample exploit provided by Sunbelt Software.

Changelog
Further details available to Secunia VIM customers

Original Advisory
MS06-055 (KB925486):
http://www.microsoft.com/technet/security/Bulletin/MS06-055.mspx

Microsoft:
http://www.microsoft.com/technet/security/advisory/925568.mspx

Other references
Further details available to Secunia VIM customers

Deep Links
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