Check Point Advisories

OpenOffice EMF File EMR_BITBLT Record Integer Overflow (CVE-2007-5746)

Vulnerability
Protection

Check Point Reference:	CPAI-2008-295
Date Published:	2 Jun 2010
Severity:	Medium
Last Updated:	Sunday 14 February, 2016
Source:
Industry Reference:	CVE-2007-5746
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	An integer overflow vulnerability exists in the OpenOffice software suite. The vulnerability is due to the way OpenOffice parses EMF images. A remote attacker could exploit this vulnerability by persuading a user to open a malicious EMF file, potentially causing arbitrary code to be injected and executed on the target system in the security context of the logged in user. In an attack case where code injection is not successful, all instances of the vulnerable OpenOffice application will terminate. In a more sophisticated attack scenario where code injection is successful, the behavior of the target host is entirely dependent on the intended function of the injected code. The code in such a case would execute within the security context of the current user. The affected application would also most likely stop functioning as a result of such an attack.

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 OpenOffice EMF File EMR_BITBLT Record Integer Overflow 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: OpenOffice EMF file EMR_BITBLT record integer overflow