Check Point Advisories

Sun Java Web Start Splashscreen GIF Decoding Buffer Overflow (CVE-2008-2086)

Check Point Reference: CPAI-2008-383
Date Published: 28 Dec 2009
Severity: High
Last Updated: Wednesday 08 May, 2013
Source:
Industry Reference:CVE-2008-2086
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description The Sun Java Web Start is a component of the Java 2 Runtime Environment (JRE). It allows for the network deployment of Java applications. This component enables stand-alone Java applications to be downloaded from a remote network location and invoked on a target machine. There exists a memory corruption vulnerability in Sun Microsystems' Java Web Start. The flaw is due to a boundary error when displaying a customized splashscreen GIF image. A remote attacker may exploit this vulnerability by enticing the target user to visit a malicious web page. Successful attack may allow for arbitrary code injection and execution with privileges of the target user. In an attack case where code injection is not successful, the Java Web Start application will terminate unexpectedly. In a more sophisticated attack scenario where code injection is successful, the behavior of the target host is entirely dependent on the intended function of the injected code. In such a case, the injected code will be executed within the context of the currently logged in user.

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

  1. In the IPS tab, click Protections and find the Sun Java Web Start Splashscreen GIF Decoding Buffer Overflow protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Content Protection Violation.
Attack Information:  Sun Java Web Start splashscreen GIF decoding buffer overflow

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