Check Point Advisories

Adobe Reader JavaScript spell.customDictionaryOpen Method Memory Corruption - Ver2 (CVE-2009-1493)

Vulnerability
Protection

Check Point Reference:	CPAI-2009-389
Date Published:	3 Mar 2014
Severity:	High
Last Updated:	Monday 03 March, 2014
Source:
Industry Reference:	CVE-2009-1493
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Adobe develops products for creating, distributing, and viewing Portable Document Format (PDF) documents. Adobe Reader is a viewer application that allows for reading and the printing of PDF documents. Adobe Acrobat provides PDF authoring functionality in addition to those of viewing. A buffer overflow vulnerability exists in Adobe Reader and Acrobat on Linux/Unix platform. The vulnerability is due to insufficient input validation in the implementation of a certain JavaScript method. A remote attacker can exploit this vulnerability by enticing the target user to open a malicious PDF file. In an attack case where code injection is not successful, the affected Acrobat application parsing the malicious PDF document can terminate abnormally. In a more sophisticated attack where code injection is successful, the behavior of the target host is entirely dependent on the intended function of the injected code. The injected code, in this case, would execute within 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

In the IPS tab, click Protections and find the Adobe Reader JavaScript spell.customDictionaryOpen Method Memory Corruption - Ver2 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: Adobe Reader Violation.
Attack Information: Adobe Reader JavaScript spell.customDictionaryOpen Method Memory Corruption - Ver2