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FreeRADIUS Client Certificate Verification Stack Buffer Overflow (CVE-2012-3547)


Check Point Reference: CPAI-2012-652
Date Published:
Source: FreeRADIUS Server Project Advisory SA50484
Industry Reference(s): CVE-2012-3547
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
FreeRADIUS Server Project FreeRADIUS 2.1.10
FreeRADIUS Server Project FreeRADIUS 2.1.11
FreeRADIUS Server Project FreeRADIUS 2.1.12
Vulnerability Description
A stack buffer overflow vulnerability has been reported on FreeRADIUS server.
Vulnerability Details
The vulnerability is due to an error in the certificate verification function. A remote attacker could exploit this vulnerability by sending a specially crafted certificate to the server. Successful exploitation could result in arbitrary code execution in the context of the affected application.

Protection Overview
This protection will detect and block attempts to exploit this vulnerability.

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 FreeRADIUS Client Certificate Verification 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: Application Servers Protection Violation
Attack Information: FreeRADIUS Client Certificate Verification Stack Buffer Overflow