bugtraq - CSIS Advisory: Microsoft GDI+ Integer division by zero flaw handling .ICO files

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Message-ID: <C81131AE0CE8FC48B5B3D1F888FE33A3976040@maya.csis.local>
Date: Thu, 7 Jun 2007 11:21:23 +0200
From: "Dennis Rand" <rand@...s.dk>
To: <bugtraq@...urityfocus.com>
Subject: CSIS Advisory: Microsoft GDI+ Integer division by zero flaw handling .ICO files

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