Security Vulnerability in the TCP Implementation of Solaris Systems (Sun 200864)

Original Release Date: May 16, 2008
Last Revised: June 8, 2009
Number: ASA-2008-206
Risk Level: Low
Advisory Version: 3.0
Advisory Status: Final

1. Overview:

A new Sun Alert Notification from Sun Microsystems has been issued and is described below. Additional information about this issue may be found on the sunsolve.sun.com website, although a maintenance contract with Sun may be required to view the information.

200864
Security Vulnerability in the TCP Implementation of Solaris Systems May Allow a Denial of Service When Accepting New Connections While Undergoing a TCP "SYN Flood" Attack
Product: Solaris 8 Operating System, Solaris 9 Operating System, Solaris 10 Operating System
Category: Security
Date Released: 06-May-2008
http://sunsolve.sun.com/search/document.do?assetkey=1-66-200864-1

The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2008-2121 to this issue.

2. Avaya System Products using a Sun Microsystems Operating System:

Avaya system products include an Operating System with the product when it is delivered. Avaya Call Management System (CMS) and Avaya Interactive Response (IR) are both shipped with an operating system from Sun Microsystems. Actions to be taken on those products are described below.

Product: Affected Version(s): Risk Level: Actions:
Avaya CMS R13/R13.1, R14 Low This issue affects systems which have a value for the ndd tunable 'tcp_conn_req_max_q0' higher than the default value of 1024. CMS uses the default value.
Install the latest R13.1 or R14.1 load which includes the patch to fix this issue.
Avaya IR 2.0, 3.0 Low This issue affects systems which have a value for the ndd tunable 'tcp_conn_req_max_q0' higher than the default value of 1024. IR uses the default value.
IR 2.0 is no longer supported and the patch will not be tested.
For 3.0, install IR Service Pack 4 and June Solaris cluster from Avaya Support.

Recommended Actions:
For all vulnerable system products, Avaya recommends that customers restrict local and network access to the server. This restriction should be enforced through the use of physical security, firewalls, ACLs, VPNs, and other generally-accepted networking practices until such time as an update becomes available and can be installed.

3. Additional Information:

Additional information may also be available via the Avaya support website and through your Avaya account representative. Please contact your Avaya product support representative, or dial 1-800-242-2121, with any questions.

4. Disclaimer:

ALL INFORMATION IS BELIEVED TO BE CORRECT AT THE TIME OF PUBLICATION AND IS PROVIDED "AS IS". AVAYA INC., ON BEHALF ITSELF AND ITS SUBSIDIARIES AND AFFILIATES (HEREINAFTER COLLECTIVELY REFERRED TO AS "AVAYA"), DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND FURTHERMORE, AVAYA MAKES NO REPRESENTATIONS OR WARRANTIES THAT THE STEPS RECOMMENDED WILL ELIMINATE SECURITY OR VIRUS THREATS TO CUSTOMERS' SYSTEMS. IN NO EVENT SHALL AVAYA BE LIABLE FOR ANY DAMAGES WHATSOEVER ARISING OUT OF OR IN CONNECTION WITH THE INFORMATION OR RECOMMENDED ACTIONS PROVIDED HEREIN, INCLUDING DIRECT, INDIRECT, INCIDENTAL, STATUTORY, CONSEQUENTIAL DAMAGES, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF AVAYA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

THE INFORMATION PROVIDED HERE DOES NOT AFFECT THE SUPPORT AGREEMENTS IN PLACE FOR AVAYA PRODUCTS. SUPPORT FOR AVAYA PRODUCTS CONTINUES TO BE EXECUTED AS PER EXISTING AGREEMENTS WITH AVAYA.

5. Revision History:

V 1.0 - May 16, 2008 - Initial Statement issued.
V 2.0 - May 29, 2009 - Changed CMS and IR actions, and ASA status to final.
V 3.0 - June 8, 2009 - Modified CMS actions.

Send information regarding any discovered security problems with Avaya products to either the contact noted in the product's documentation or securityalerts@avaya.com.

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