PostgreSQL security update (RHSA-2008-0038)

Original Release Date: January 23, 2008
Last Revised: January 20, 2009
Number: ASA-2008-033
Risk Level: Medium
Advisory Version: 3.0
Advisory Status: Interim

1. Overview:

PostgreSQL is an open-source relational database system.

A number of vulnerabilities have been discovered in the PostgreSQL regular expression engine. An authenticated attacker could potentially exploit these vulnerabilities to cause the PostgreSQL server to crash, enter an infinite loop, or utilize large amounts of CPU and memory, creating a Denial of Service (DoS) condition. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2007-4769, CVE-2007-4772 and CVE-2007-6067 to these issues.

A vulnerability has been found in PostgreSQL which could allow an authenticated attacker to create an index function that would be executed with super user (su) privileges during certain database maintenance activities. This issue constitutes a privilege escalation attack. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2007-6600 to this issue.

Certain Avaya products listed in this advisory are vulnerable to CVE-2007-6600, and are marked with a risk level of Medium. Products in this advisory which are not vulnerable to CVE-2007-6600 by default are marked with a risk level of Low.

A privilege escalation vulnerability has been discovered in the PostgreSQL Database Link library (dblink). An authenticated attacker could exploit the dblink to potentially gain escalated privileges in certain configurations. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2007-3278 and CVE-2007-6601 to this issue.

No Avaya products listed in this advisory are vulnerable to CVE-2007-3278 or CVE-2007-6601 by default.

More information about these vulnerabilities can be found in the security advisory issued by RedHat Linux:

2. Avaya System Products with postgresql installed:

Product: Affected Version(s): Risk Level: Actions:
Avaya Communication Manager CM 5.0 on S8300C servers with embedded SIP Enablement Services enabled Low Upgrade to CM 5.1.2 or later.
Avaya Intuity AUDIX LX IALX 2.0 Low See recommended actions below.  This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy
Avaya Messaging Storage Server MSS 3.x Low Upgrade to MSS 4.0 or later.
Avaya Message Networking MN 3.1 Medium See recommended actions below.  This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy
Avaya SIP Enablement Services SES 5.0 and earlier Low Upgrade to SES 5.1 or later.
Avaya Meeting Exchange MX 5.0 Low See recommended actions below.  This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy

Recommended Actions:
For all system products which use vulnerable versions of PostgreSQL, 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. Avaya Software-Only Products:

Avaya software-only products operate on general-purpose operating systems. Occasionally vulnerabilities may be discovered in the underlying operating system or applications that come with the operating system. These vulnerabilities often do not impact the software-only product directly but may threaten the integrity of the underlying platform.

In the case of this advisory Avaya software-only products are not affected by the vulnerability directly but the underlying Linux platform may be. Customers should determine on which Linux operating system the product was installed and then follow that vendor's guidance.

Product: Actions:
CVLAN Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the CVLAN application.
Avaya Integrated Management Suite (IMS) Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the IMS application.
Voice Portal Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the Voice Portal application.

Recommended Actions:
In the event that the affected package is installed, Avaya recommends that customers follow recommended actions supplied by RedHat Linux.

4. 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.

5. 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.

6. Revision History:

V 1.0 - January 23, 2008 - Initial Statement issued.
V 2.0 - December 19, 2008 - Changed SES affected versions and recommended actions.
V 3.0 - January 20, 2009 - Changed CM and MSS recommended actions.

Send information regarding any discovered security problems with Avaya products to either the contact noted in the product's documentation or [email protected].

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