Vulnerability Note VU#990200

Macromedia JRun Server is vulnerable to buffer overflow

Overview

A buffer overflow vulnerability exists in the Macromedia JRun web server that may allow an attacker to cause a denial-of-service condition.

I. Description

JRun is an application server that works with most popular web servers, such as Apache and IIS. The JRun web server is vulnerable to a buffer overflow when it is placed in verbose debugging mode. Although this mode is disbled by default, if accidently left on an attacker may be able to crash the web server.

II. Impact

An attacker may be able to crash the web server resulting in a denial-of-service condition.

III. Solution

Apply Patch

For JRun versions 3.0 and 3.1, a patch is available at:

http://www.macromedia.com/devnet/security/security_zone/mpsb04-08.html.

For JRun version 4.0, apply the latest updater:

http://www.macromedia.com/support/jrun/updaters.html

Systems Affected

Vendor	Status	Date Updated
Macromedia Inc.	Vulnerable	11-Oct-2004

References

http://secunia.com/advisories/12647/
http://secunia.com/advisories/12638/
http://www.macromedia.com/devnet/security/security_zone/mpsb04-08.html

Credit

This vulnerability was reported in Macromedia Security Bulletin MPSB04-08.

This document was written by Jeff Gennari.

Other Information

Date Public	09/23/2004
Date First Published	10/12/2004 12:52:10 PM
Date Last Updated	10/14/2004
CERT Advisory
CVE Name
Metric	0.08
Document Revision	36

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