Vulnerability Note VU#990200

Macromedia JRun Server is vulnerable to buffer overflow

Original Release date: 12 Oct 2004 | Last revised: 14 Oct 2004


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


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.


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


Apply Patch

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

For JRun version 4.0, apply the latest updater:

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Macromedia Inc.Affected29 Sep 200411 Oct 2004
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A



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

This document was written by Jeff Gennari.

Other Information

  • CVE IDs: Unknown
  • Date Public: 23 Sep 2004
  • Date First Published: 12 Oct 2004
  • Date Last Updated: 14 Oct 2004
  • Severity Metric: 0.08
  • Document Revision: 36


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