Check Point Advisories

Microsoft Windows GDI+ VML Gradient Buffer Overflow (MS08-052; CVE-2007-5348)

Check Point Reference: CPAI-2008-143
Date Published: 1 Sep 2008
Severity: Critical
Last Updated: Monday 01 September, 2008
Source:
Industry Reference:CVE-2007-5348
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description Vector Markup Language (VML) is a set of XML tags used for exchange, editing, and delivery of vector graphics on the web. A remote code execution vulnerability has been reported in the way that GDI+ handles VML files. The vulnerability is due to a heap-based buffer overrun when GDI+ fails to properly process gradient sizes handled by the vector graphics link library. A remote attacker can trigger this flaw by convincing a user to view a specially crafted Web site. Successful exploitation of this vulnerability could allow execution of arbitrary code, once the malicious page is loaded.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75 / R71 / R70 / R65

  1. In the IPS tab, click Protections and find the Microsoft Windows GDI+ VML Gradient Buffer Overflow (MS08-052) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Client Enforcement Violation.
Attack Information:  Microsoft Windows GDI+ VML gradient buffer overflow (MS08-052)

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