ZDI-08-020: Microsoft GDI WMF Parsing Heap Overflow Vulnerability
ZDI-08-020: Microsoft GDI WMF Parsing Heap Overflow Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-020
-- CVE ID:
CVE-2008-1083
-- Affected Vendors:
Microsoft
-- Affected Products:
Microsoft Windows XP SP2
Microsoft Windows 2003 SP1
Microsoft Windows Vista
-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Microsoft Windows. User interaction is
required in that a user must open a malicious file or visit a malicious
web page.
The specific flaw exists within the parsing of malformed WMF files. A
vulnerability exists in the GDI funcion CreateDIBPatternBrushPt used
when processing WMF files. Due to a mis-calculation of user data a heap
chunk can be under-allocated and later used resulting in a heap
overflow. Successful exploitation can result in system compromise under
the credentials of the currently logged in user.
-- Vendor Response:
Microsoft has issued an update to correct this vulnerability. More
details can be found at:
http://www.microsoft.com/technet/security/bulletin/ms08-021.mspx
-- Disclosure Timeline:
2008-02-07 - Vulnerability reported to vendor
-- Credit:
This vulnerability was discovered by:
* Sebastian Apelt (webmaster@xxxxxxxxxxxxx)
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