Check Point Advisories

ClamAV AntiVirus UPX Compressed PE Executable Files Buffer Overflow (CVE-2005-2920)

Vulnerability
Protection

Check Point Reference:	CPAI-2012-145
Date Published:	24 Apr 2012
Severity:	High
Last Updated:	Tuesday 24 April, 2012
Source:
Industry Reference:	CVE-2005-2920
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A buffer overflow vulnerability has been reported in ClamAV anti-virus product. The vulnerability is caused due to the improper handling of UPX compressed executable files. A remote attacker may exploit this flaw by enticing a target user to open a specially crafted PE file. This vulnerability may be exploited by malicious users to inject and execute arbitrary code on the target 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 ClamAV AntiVirus UPX Compressed PE Executable Files 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: ClamAV AntiVirus UPX Compressed PE executable files buffer overflow