Hash: SHA1

             AUSCERT External Security Bulletin Redistribution

                          ESB-2009.0593 -- [Win]
                 Citrix Secure Gateway: Denial of Service
                                1 July 2009


        AusCERT Security Bulletin Summary

Product:              Citrix Secure Gateway
Publisher:            Citrix
Operating System:     Windows
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2009-2214

Original Bulletin:    http://support.citrix.com/article/CTX121172

Revision History:     July 1 2009: Added CVE Reference
                      June 22 2009: Initial Release

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Vulnerability in Citrix Secure Gateway could result in Denial of Service
Document ID: CTX121172 / Created On: Jun 15, 2009 / Updated On: Jun 15, 2009

Severity: Medium

Description of Problem

A vulnerability has been identified in Citrix Secure Gateway that could 
result in a denial of service.

When a specific request is made to the Secure Gateway service from a remote 
attacker, the Secure Gateway service can be made to consume 100% of the 
available CPU and may refuse further connections.

This vulnerability is present in all versions of Citrix Secure Gateway up 
to and including version 3.1.

Please note that the Citrix Access Gateway appliance is not affected by 
this vulnerability when configured to act as a Citrix Secure Gateway.

What Customers Should Do

A hotfix has been released to address this issue. Citrix recommends that 
customers using Secure Gateway install this hotfix, which can be downloaded 
from the following locations:

Citrix Secure Gateway 3.1:

EN - http://support.citrix.com/article/CTX121012

JA - http://support.citrix.com/article/CTX121013


Citrix would like to thank the Qualys Vulnerability Research team 
(http://www.qualys.com/research/) for working with us to protect Citrix 

What Citrix Is Doing

Citrix is notifying customers and channel partners about this potential 
security issue. This article is also available from the Citrix Knowledge 
Center at http://support.citrix.com/.

Obtaining Support on This Issue

If you require technical assistance with this issue, please contact Citrix 
Technical Support. Contact details for Citrix Technical Support are 
available at http://www.citrix.com/site/ss/supportContacts.asp.

Reporting Security Vulnerabilities to Citrix

Citrix welcomes input regarding the security of its products and considers 
any and all potential vulnerabilities seriously. If you would like to 
report a security issue to Citrix, please compose an e-mail to 
secure@citrix.com stating the exact version of the product in which the 
vulnerability was found and the steps needed to reproduce the vulnerability

This document applies to:

    * Access Essentials 2.0
    * Access Essentials 3.0
    * Secure Gateway 3.0
    * Secure Gateway 3.1

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