Microsoft Windows GDI WMF image file integer overflow

Notification Type: IBM Internet Security Systems Protection Alert
Notification Date: December 9, 2008
Notification Version: 1.0
   
Name: Microsoft Windows GDI WMF image file integer overflow
Public disclosure/
In the wild date:		 December 9, 2008
Aliases: MS08-071
CVE: CVE-2008-2249
Description:

The Microsoft Windows GDI is vulnerable to an integer overflow, caused by improper handling of integer calculations within a WMF image file.

 

ISS Coverage
Product Content Version
Proventia Network IDS
Proventia Network IPS
Proventia Network MFS
Proventia Server (Linux)
RealSecure Network
RealSecure Server Sensor		 28.190
Proventia Desktop
Proventia Server IPS (Windows)		 2330
Propagation Techniques ISS Protection Available

remote exploit

Image_WMF_GDI_Image_Overflow

Dec 9, 2008

Detailed Description
Business Impact: This vulnerability is related to a core component of Microsoft Windows operating systems.  Exploitation simply involves enticing a user to view an email or a URL that contains a specially-crafted image file.  This technique of infecting end-user systems has been employed for many years and continues to be a means of infection today.  Compromise means complete control of the end user's system.
CVSS Base Score: 9.3
  Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Complete
Integrity Impact: Complete
Availability Impact: Complete
Adjusted Temporal Score: 6.9
  Exploitability: Unproven
Remediation Level: Official-Fix
Report Confidence: Confirmed
Affected Products: For a full list of affected versions, see references below.
Technical Description:

The Microsoft Windows GDI is vulnerable to an integer overflow, caused by improper handling of integer calculations within a WMF image file. By persuading a victim to open a specially-crafted image file, a remote attacker could exploit this vulnerability to overflow a buffer and execute arbitrary code on the system with the privileges of the victim.

Remediation:

Patches are available for this issue. See References for details.

References
XFDB: http://xforce.iss.net/xforce/xfdb/46842
Microsoft: http://www.microsoft.com/technet/security/bulletin/ms08-071.mspx

Revision History
1.0 Initial publication.


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