Microsoft DirectX SAMI File Format Name Parsing Stack Overflow Vulnerability

Advisory Content :

ZDI-08-040: Microsoft DirectX SAMI File Format Name Parsing Stack Overflow

Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-08-040

-- CVE ID:

CVE-2008-1444

-- Affected Vendors:

Microsoft

-- Affected Products:

Microsoft Windows 2000 SP4

-- TippingPoint(TM) IPS Customer Protection:

TippingPoint IPS customers have been protected against this

vulnerability by Digital Vaccine protection filter ID 6152.

For further product information on the TippingPoint IPS, visit:

http://www.tippingpoint.com

-- Vulnerability Details:

This vulnerability allows remote attackers to execute arbitrary code on

vulnerable installations of Microsoft Windows. User interaction is

required to exploit this vulnerability in that the target must visit a

malicious page or open a malicious file.

The specific flaw exists in the parsing of SAMI files. When handling

the properties of a "Class Name" variable a lack of bounds checking can

result in a stack overflow. Successful exploitation can lead to remote

code execution under the credentials of the 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/MS08-033.mspx

-- Disclosure Timeline:

2008-01-21 - Vulnerability reported to vendor

-- Credit:

This vulnerability was discovered by:

* Anonymous

-- About the Zero Day Initiative (ZDI):

Established by TippingPoint, The Zero Day Initiative (ZDI) represents

a best-of-breed model for rewarding security researchers for responsibly

disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research

through the ZDI can find more information and sign-up at:

http://www.zerodayinitiative.com

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used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or

mitigation product.

Our vulnerability disclosure policy is available online at:

http://www.zerodayinitiative.com/advisories/disclosure_policy/

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Microsoft DirectX SAMI File Format Name Parsing Stack Overflow Vulnerability