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Sophos Anti-Virus PDF Handling Stack Buffer Overflow

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Check Point Reference: CPAI-2012-830
Date Published:
Severity:
Source: Sophos Advisory 118424
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
Sophos Threat Detection Engine 3.36.2 and prior
Vulnerability Description
A stack buffer overflow vulnerability has been reported in Sophos Anti-Virus and Endpoint Protection.
Vulnerability Details
The vulnerability is due to an error when handling encrypted PDF files. A remote attacker can exploit this issue by sending a specially crafted PDF file to an affected user. The vulnerability is triggered when the Sophos Detection Engine scans the malformed PDF file. Successful exploitation could result in arbitrary code execution in the context of the affected service.

Protection Overview
This protection will detect and block the transferring of specially crafted PDF files to the target.

In order for the protection to be activated, update your product to the latest update. For information on how to update , go to SBP-2006-05, Protection tab and select the version of your choice.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway R75 / R71 / R70

How Can I Protect My Network?

  1. In the IPS tab, click Protections and find the Sophos Anti-Virus PDF Handling Stack Buffer Overflow protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: Security Products Enforcement Violation
Attack Information: Sophos Anti-Virus PDF Handling Stack Buffer Overflow