kernel security and bug fix update (RHSA-2014-1959)

Original Release Date: January 13, 2015
Last Revised: July 21, 2016
Number: ASA-2015-003
Risk Level: Medium
Advisory Version: 5.0
Advisory Status: Final

1. Overview:

The kernel packages contain the Linux kernel, the core of any Linux operating system.

It was found that the permission checks performed by the Linux kernel when a netlink message was received were not sufficient. A local, unprivileged user could potentially bypass these restrictions by passing a netlink socket as stdout or stderr to a more privileged process and altering the output of this process. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2014-0181 to this issue.

More information about this vulnerability can be found in the security advisory issued by Red Hat:

2. Avaya System Products using a modified version of RHEL5 with affected packages installed:

Product: Affected Version(s): Risk Level: Actions:
Avaya Aura® Application Enablement Services 6.x Medium Upgrade to 7.0 or later.
Avaya Aura® Application Server 5300:
  • SIP Core
2.x thru 3.0 SP9 Medium Upgrade to 3.0 SP10 or later.
Avaya IQ 5.0 thru 5.2.5 Medium Upgrade to 5.2.6 and install Patch 2 or later.
Avaya Aura® Communication Manager 6.x Low Upgrade to 7.0 or later.
Avaya Communication Server 1000:
  • CS1000E
  • CS1000M
  • CS1000E/CS1000M Signaling Server
7.x Low See recommended actions and Mitigating Factors table below. This advisory will not be addressed as no further releases are planned.
Avaya Aura® Conferencing 7.x Medium Upgrade to 8.0 SP2 or later.
Avaya Aura® Conferencing Standard Edition 6.x Medium See recommended actions and Mitigating Factors table below. This advisory will not be addressed as no further releases are planned. It is recommended that customers migrate to one of Avaya's conferencing solutions including Aura® Conferencing 7.0 or later.
Avaya IP Office Application Server 8.x Medium Upgrade to 9.1.4 or later.
Avaya Meeting Exchange 6.2 thru 6.2 SP2 Medium Upgrade to 6.2 SP3 or later.
Avaya Message Networking 6.3 Medium Upgrade to 6.3 SP1 or later.
Avaya Aura® Messaging 6.0 thru 6.3.2 Low Upgrade to 6.3.3 or later.
Avaya one-X® Client Enablement Services 6.1.x Medium Upgrade to 6.2 SP4 or later.
Avaya Aura® Presence Services 6.x Medium Upgrade to Aura Presence Services 7.0 or later. Further information about this version, as well as the overall Aura 7.0 release, is available on support.avaya.com.
Avaya Proactive Contact 5.0 thru 5.1.1 Medium Upgrade to 5.1.2 or later.
Avaya Aura® Session Manager 6.x thru 6.2.x Low Upgrade to 7.0 or later.
Avaya Aura® System Manager 6.0 thru 6.3.11 Medium Upgrade to 6.3.12 or later.
Avaya Aura® System Platform 6.0 thru 6.3.6 Low Upgrade to 6.3.7 or later.
Avaya Aura® Communication Manager Utility Services 6.0 thru 6.3 SP7 Medium Upgrade to 6.3 SP8 or later.

Recommended Actions for System Products:
Avaya strongly recommends following 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-2014-0181
This is a Low risk for Communication Manager, Communication Server 1000, Messaging, Session Manager and System Platform because only authenticated privileged users could exploit which would not provide additional capability.
This is a Medium risk for all other listed products due to the potential for an authenticated local user to affect the integrity of process output data.

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® Application Enablement Services Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the AES application.
Avaya IQ Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the Avaya IQ application.
CVLAN Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the CVLAN application.
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.
Avaya Integrated Management Suite (IMS) Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the IMS application.
Avaya Aura® Presence Services Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the PS application.

Recommended Actions for Software-Only Products:
In the event that the affected package is installed, Avaya recommends following 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 - January 13, 2015 - Initial Statement issued.
V 2.0 - October 16, 2015 - Updated AES, AS5300, CM, AAC, IQ, IPOAS, one-X CES, PS, SM, SMGR and SP affected versions and actions.
V 3.0 - February 2, 2016 - Updated Messaging affected versions and actions.
V 4.0 - May 25, 2016 - Updated MN and PC affected versions and actions.
V 5.0 - July 21, 2016 - Updated Meeting Exchange affected versions and actions, and 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 securityalerts@avaya.com.

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