Check Point Advisories

AOL Desktop .RTX File Parsing Buffer Overflow

Vulnerability
Protection

Check Point Reference:	CPAI-2011-269
Date Published:	24 May 2011
Severity:	Medium
Last Updated:	Tuesday 26 March, 2024
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	AOL Desktop is an Internet application suite that integrates a web browser, media player, instant messenger client and document editing. RTX (Rich Text Document) is a proprietary document format used by AOL for document creation and editing. A remote attacker could exploit this issue via a malformed RTX file. A buffer overflow vulnerability has been discovered in AOL Desktop software. The vulnerability is due to a boundary error in the AOL Desktop software while parsing a specially crafted RTX file. A remote attacker could exploit this issue by enticing target users to open the crafted file with a vulnerable version of the AOL Desktop. Successful exploitation of this vulnerability could allow execution of arbitrary code on an affected system.

Protection Overview

This protection will detect and block the transferring of malformed RTX files over HTTP.

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 R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the AOL Desktop .RTX 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: Content Protection Violation.
Attack Information: AOL Desktop .RTX File Parsing Buffer Overflow