Check Point Advisories

LibTIFF TIFFFetchData Function Integer Overflow (CVE-2006-2025)

Check Point Reference: CPAI-2006-190
Date Published: 3 Mar 2010
Severity: Medium
Last Updated: Sunday 14 February, 2016
Source:
Industry Reference:CVE-2006-2025
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Tagged Image File Format, TIFF, is a file format used primarily for storing digital images, including photographs and line art. TIFF is a popular format for high colour depth images, along with JPEG and PNG. It is widely supported by applications that handle images, such as browsers and also image manipulation and office products such as GIMP and Adobe Photoshop. An integer overflow vulnerability exists in LibTIFF TIFF file processing library. The vulnerability is result of the lack of proper boundary checking in certain function, which is responsible for parsing and fetching data from TIFF files. By enticing a user to open a craft TIFF file, an attacker may leverage the vulnerability to inject and execute arbitrary code. In case of an attack where code injection and execution is unsuccessful, the application which uses the vulnerable library will terminate. In case of an attack where code injection and execution is successful, the behavior of the application will depend on the intended purpose of the injected code. Any code injected will run in the security context of the currently logged in user.

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 LibTIFF TIFFFetchData Function Integer 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:  Content Protection Violation.
Attack Information:  LibTIFF TIFFFetchData function integer overflow

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