Check Point Advisories

Sun MySQL Database SELECT Subquery Denial of Service

Vulnerability
Protection

Check Point Reference:	CPAI-2009-453
Date Published:	9 Mar 2010
Severity:	High
Last Updated:	Tuesday 09 March, 2010
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	MySQL is a popular open-source implementation of a relational database that supports the Structured Query Language (SQL) for querying and updating stored data. Communication with the database occurs using the MySQL protocol. As with other database implementations, MySQL has a number of built-in SQL functions and supported operators that are designed to assist the user with the task of querying and updating the database. A denial of service vulnerability exists in MySQL database server. The vulnerability is due to an input validation error while parsing a specially crafted query with a sub-query inside. Remote authenticated users can exploit this vulnerability to cause a denial of service condition. Successful exploitation would cause the database service to terminate abnormally.

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 Sun MySQL Database SELECT Subquery Denial of Service 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: MySQL Protection Violation.
Attack Information: Sun MySQL Database SELECT subquery denial of service