Check Point Advisories

MIT Kerberos KDC NULL Pointer Denial Of Service (CVE-2011-0283)

Vulnerability
Protection

Check Point Reference:	CPAI-2012-008
Date Published:	17 Jan 2012
Severity:	High
Last Updated:	Monday 25 November, 2024
Source:	CVE-2011-0283
Protection Provided by:	Security Gateway R75
Who is Vulnerable?	MIT Kerberos krb5-1.9
Vulnerability Description	A denial of service vulnerability has been reported in MIT Kerberos.
Vulnerability Details	The vulnerability is caused due to a NULL pointer dereference in the response dispatch routine in the Key Distribution Center (KDC) service. A remote attacker may exploit this vulnerability by sending a malformed request packet to the affected service. Successful exploitation could allow an attacker to cause a denial of service condition in the target service.

Protection Overview

This protection will detect and block the transferring of malformed packets.

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.

Security Gateway R75 / R71 / R70

1. In the IPS tab, click Protections and find the MIT Kerberos KDC NULL Pointer Denial of Service protection using the Search tool and Edit the protection's settings.
2. Install policy on all modules.

SmartView Tracker will log the following entries:
Attack Name: Application Servers Protection Violation
Attack Information: MIT Kerberos KDC NULL pointer denial of service