openldap security and bug fix update (RHSA-2014-0126)

Original Release Date: February 25, 2014
Last Revised: October 13, 2015
Number: ASA-2014-090
Risk Level: Low
Advisory Version: 4.0
Advisory Status: Final

1. Overview:

OpenLDAP is an open source suite of Lightweight Directory Access Protocol (LDAP) applications and development tools. LDAP is a set of protocols used to access and maintain distributed directory information services over an IP network. The openldap package contains configuration files, libraries, and documentation for OpenLDAP.

A denial of service flaw was found in the way the OpenLDAP server daemon (slapd) performed reference counting when using the rwm (rewrite/remap) overlay. A remote attacker able to query the OpenLDAP server could use this flaw to crash the server by immediately unbinding from the server after sending a search request. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2013-4449 to this issue.

More information about these vulnerabilities can be found in the security advisory issued by Red Hat:

2. Avaya System Products using a modified version of RHEL6 with affected packages installed:

Product: Affected Version(s): Risk Level: Actions:
Avaya CMS R17.x Low Upgrade to R17 R3 as detailed in PCN1606S or later.
Avaya Aura® Collaboration Environment 2.x None See Mitigating Factors table below.
Avaya Aura® Experience Portal 6.0 thru 6.0.2, 7.x Low For 6.0, upgrade to 6.0.3 and Avaya Linux for 6.0.3 and install Security Updates for 6.0.3.
For 6.0.3, install Security Updates for 6.0.3.
For 7.0, install Security Updates for 7.0.
For 7.0.1, install Security Updates for 7.0.1.
Avaya IP Office Server Edition 8.1 thru 9.1.3 Low Upgrade to 9.1.4 or later.
Avaya IP Office Application Server 9.0 thru 9.1.3 Low Upgrade to 9.1.4 or later.
Avaya one-X® Client Enablement Services 6.2 thru 6.2 SP2 Low Upgrade to 6.2 SP3 or later.
Avaya Aura® Session Manager 6.3.x None See Mitigating Factors table below.

Recommended Actions for System Products:
Avaya strongly recommends following the networking and security best practices by implementing firewalls, ACLs, physical security or other appropriate access restrictions. Though Avaya believes such restrictions should always be in place, risk to Avaya products and the surrounding network from this potential vulnerability may be mitigated by ensuring these practices are implemented until such time as an Avaya provided product update or the recommended Avaya action is applied. Further restrictions as deemed necessary based on the customer's security policies may be required during this interim period, but the System Product operating system or application should not be modified unless the change is approved by Avaya. Making changes that are not approved may void the Avaya product service contract.

Mitigating Factors:

When determining risk, Avaya takes into account many factors as outlined by Avaya's Security Vulnerability Classification Policy. The following table describes factors that mitigate the risk of specific vulnerabilities for affected Avaya products:

Vulnerability Mitigating Factors
CVE-2013-4449
There is no risk for Collaboration Environment and Session Manager as the slapd component is not installed.
This is a Low risk for the other listed products as slapd is not running by default.

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:
Avaya Aura® Experience Portal Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the EP application.

Recommended Actions for Software-Only Products:
In the event that the affected package is installed, Avaya recommends following the recommended actions supplied by Red Hat regarding their Enterprise 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 - February 25, 2014 - Initial Statement issued.
V 2.0 - August 29, 2014 - Updated CMS actions, and CES affected versions and actions.
V 3.0 - February 19, 2015 - Updated EP affected versions and actions.
V 4.0 - October 13, 2015 - Changed IPOSE and IPOAS affected versions and actions, and set advisory status to final.

Avaya customers or Business Partners should report any security issues found with Avaya products via the standard support process.
Independent security researchers can contact Avaya at [email protected].

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