Check Point Advisories

Apple CUPS SGI Image Format Decoding imagetops Filter Buffer Overflow (CVE-2008-3639)

Check Point Reference: CPAI-2008-357
Date Published: 13 Jun 2010
Severity: High
Last Updated: Monday 17 December, 2018
Industry Reference:CVE-2008-3639
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable?
Vulnerability Description The Common Unix Printing System (CUPS) is a modular printing system for Unix-like operating systems that allows a computer to act as a print server. A computer running CUPS is a host that can accept print jobs from client computers, process them, and send them to the appropriate printer. There exists a buffer overflow vulnerability in Apple's Common Unix Printing System (CUPS) distributed by multiple vendors. The vulnerability is due to a boundary error in handling SGI Image format files. A remote attacker can exploit this vulnerability to compromise a vulnerable system. In case of an attack where code injection is not successful, the affected application will terminate abnormally. In case of an attack where code injection and execution is successful, the behavior of the target 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 affected service, with the privileges of the printer user, normally lp.

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

  1. In the IPS tab, click Protections and find the Apple CUPS SGI Image Format Decoding imagetops Filter Buffer Overflow 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:  Application Servers Protection Violation.
Attack Information:  Apple CUPS SGI image format decoding imagetops filter buffer overflow

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