Check Point Advisories

Sophos Anti-Virus Visio File Parsing Buffer Overflow (CVE-2005-2768)

Vulnerability
Protection

Check Point Reference:	CPAI-2005-285
Date Published:	16 Dec 2009
Severity:	Critical
Last Updated:	Monday 07 April, 2014
Source:
Industry Reference:	CVE-2005-2768
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	There exists a buffer overflow vulnerability in the Visio file scanning component of Sophos Anti-Virus. The vulnerability is caused by the lack of proper boundary verification of user supplied data. By sending a crafted Visio file to a target running the vulnerable product, a remote attacker can exploit this vulnerability to cause a denial-of-service or to inject and execute arbitrary code. Any code injected will be executed within the security context of the Anti-Virus service, normally System.

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 Sophos Anti-Virus Visio File Parsing Buffer 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: Security Products Enforcement Violation.
Attack Information: Sophos Anti-Virus Visio file parsing buffer overflow