Check Point Advisories

Oracle Java Font Parsing maxPoints Heap Buffer Overflow

Vulnerability
Protection

Check Point Reference:	CPAI-2012-792
Date Published:	29 Apr 2013
Severity:	High
Last Updated:	Tuesday 30 April, 2013
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A heap memory corruption vulnerability exists in Oracle Java Runtime. The vulnerability is due to the font parsing code failing to check the "maxPoints" value used in controlling heap memory operation. A remote unauthenticated attacker can exploit this vulnerability by persuading users to load a malicious web page containing a java applet.

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 Oracle Java Font Parsing maxPoints Heap 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: Oracle Protection Violation.
Attack Information: Oracle Java Font Parsing maxPoints heap buffer overflow