Check Point Advisories

Microsoft Windows Win32k EOT Parsing Integer Overflow (MS09-065; CVE-2009-2514)

Vulnerability
Protection

Check Point Reference:	CPAI-2009-448
Date Published:	3 Feb 2010
Severity:	High
Last Updated:	Sunday 23 November, 2014
Source:
Industry Reference:	CVE-2009-2514
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Microsoft Windows kernel, the core of the operating system, contains a device driver win32k.sys. This device driver is an important component that controls window displays, receives keyboard and device input, offers functions for graphic output devices, and provides many other valuable services. The Win32k.sys device driver is used when Embedded OpenType (EOT) fonts are processed within Internet Explorer. An integer overflow vulnerability exists in Microsoft Windows. The flaw is due to the way kernel-mode driver parses EOT font files. A remote attacker can exploit this vulnerability by enticing a target user to open a malicious EOT file. Successful exploitation could result in execution of arbitrary code within the security context of the Windows kernel. The behavior of the target host is entirely dependent on the intended function of the injected code. An unsuccessful exploit attempt may trigger a Denial of Service condition.

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

In the IPS tab, click Protections and find the Microsoft Windows Win32k EOT Parsing Integer Overflow (MS09-065) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Content Protection Violation.
Attack Information: Microsoft Windows win32k EOT parsing integer overflow (MS09-065)