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[Full-disclosure] CSIS Advisory: Microsoft GDI+ Integer division by zero flaw handling .ICO files

From: Dennis Rand (randcsis.dk)
Date: Wed Jun 06 2007 - 04:26:16 CDT


CSIS Security Group has discovered an "Integer division by zero" flaw in
the GDI+
component in Windows XP. This condition are activated when a malformed
ICO file
are viewed through either Windows Explorer or other components like
"Windows
Picture and Fax Viewer".

The consequence of this flaw is a Denial of Service condition and doing
a restart of
the explorer process.

Further exploitation has not been verified.

The full advisory can be downloaded at the following link:
http://www.csis.dk/dk/forside/GdiPlus.pdf

Best Regards
Dennis Rand
Malware/Security Researcher
CSIS Security Group
http://www.csis.dk

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