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Microsoft Windows ATL COM Initialization Code Execution Vulnerability (973525)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
This host is missing a critical security update according to Microsoft Bulletin MS09-055.
Insight
Insight
The flaw is due to an error in the ATL headers that handle instantiation of an object from data streams, which could allow attackers to instantiate arbitrary objects in Internet Explorer that can bypass certain related security policies.
Affected Software
Affected Software
Microsoft Windows 7 Microsoft Windows 2K SP4/XP SP3/2K3 SP2 and prior Microsoft Windows Vista Service Pack 1/2 and prior Microsoft Windows Server 2008 Service Pack 1/2 and prior
Solution
Solution
The vendor has released updates. Please see the references for more information. As a workaround set the killbit for the following CLSIDs: {0002E531-0000-0000-C000-000000000046}, {4C85388F-1500-11D1-A0DF-00C04FC9E20F}, {0002E532-0000-0000-C000-000000000046}, {0002E554-0000-0000-C000-000000000046}, {0002E55C-0000-0000-C000-000000000046}, {279D6C9A-652E-4833-BEFC-312CA8887857}, {B1F78FEF-3DB7-4C56-AF2B-5DCCC7C42331}, {C832BE8F-4B89-4579-A217-DB92E7A27915}, {A9A7297E-969C-43F1-A1EF-51EBEA36F850}, {DD8C2179-1B4A-4951-B432-5DE3D1507142}, {4F1E5B1A-2A80-42ca-8532-2D05CB959537}, {27A3D328-D206-4106-8D33-1AA39B13394B}, {DB640C86-731C-484A-AAAF-750656C9187D}, {15721a53-8448-4731-8bfc-ed11e128e444}, {3267123E-530D-4E73-9DA7-79F01D86A89F}