dbus-glib security update (RHSA-2013-0568)

Original Release Date: March 29, 2013
Last Revised: May 31, 2017
Number: ASA-2013-179
Risk Level: Medium
Advisory Version: 5.0
Advisory Status: Final

1. Overview:

dbus-glib is an add-on library to integrate the standard D-Bus library with the GLib main loop and threading model.

A flaw was found in the way dbus-glib filtered the message sender (message source subject) when the "NameOwnerChanged" signal was received. This could trick a system service using dbus-glib (such as fprintd) into believing a signal was sent from a privileged process, when it was not. A local attacker could use this flaw to escalate their privileges. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2013-0292 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 RHEL with affected packages installed:

Product: Affected Version(s): Risk Level: Actions:
Avaya Aura® Application Enablement Services 5.x, 6.0 thru 6.3.1 Medium For System Platform offer, upgrade to 6.2 and install Linux Security Patch 1 or later.
For bundled and VMware offers, upgrade to 6.3.3 or later.
Avaya Aura® Application Server 5300:
  • SIP Core
2.x, 3.x Medium For 2.x upgrade to 3.0 and install Service Pack 6 or later.
For 3.0 install Service Pack 6 or later.
Avaya IQ 5.2 thru 5.2.5 Medium Upgrade to 5.2.6 and install Patch 2 or later.
Avaya Communication Server 1000:
  • CS1000E
  • CS1000M
  • CS1000E/CS1000M Signaling Server
6.x, 7.x Medium See recommended actions and Mitigating Factors table below. This advisory will not be addressed as no further releases are planned.
Avaya Aura® Conferencing 7.0 thru 7.2 SP2 Low Upgrade to 7.2 SP3 or later.
Avaya Aura® Conferencing Standard Edition 6.x Low 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 8.0 or later.
Avaya Aura® Experience Portal 6.0 thru 6.0.2 Medium Upgrade to 6.0.3 and Avaya Linux for 6.0.3, and install 6.0.3 Security Updates or later.
Avaya IP Office Server Edition 8.x, 9.x Medium See recommended actions and Mitigating Factors table below. This advisory will not be addressed.
Avaya IP Office Application Server 8.x, 9.x Medium See recommended actions and Mitigating Factors table below. This advisory will not be addressed.
Avaya one-X® Client Enablement Services 6.1 thru 6.2 Medium Upgrade to 6.2 SP1 or later.
Avaya Aura® Presence Services 6.0.x, 6.1 Medium Upgrade to 6.1 SP2 or later.
Avaya Proactive Contact 5.0, 5.1 Medium Upgrade to 5.1.1 or later.
Avaya Aura® Session Manager 1.x, 5.x, 6.0.x thru 6.3.3 Medium Upgrade to 6.3.4 or later.
Avaya Aura® System Manager 5.x, 6.0.x thru 6.3.3 Medium Upgrade to 6.3.4 or later.
Avaya Aura® System Platform 1.x, 6.0.x thru 6.3 Medium Upgrade to 6.3.1 or later.
Avaya Aura® Utility Services 6.x thru 6.2.x Medium Upgrade to 6.3 or later.
Avaya Voice Portal 5.x Medium See recommended actions and Mitigating Factors table below. This advisory will not be addressed as there will be no further releases. It is recommended to upgrade to Avaya Aura® Experience Portal.

Recommended Actions for System Products:
Avaya strongly recommends that customers follow 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 customers should not modify the System Product operating system or application 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-2013-0292
This is a Medium risk for all products except Conferencing and Conferencing Standard Edition because the exploit would potentially allow a local user to escalate privileges.
This is a Low risk for Conferencing Standard Edition because the local users are privileged users.
This is a Low risk for Conferencing because only tools accessible to privileged users are affected.
An exploit by a privileged user would not provide any additional capabilities in both these cases.

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 4.x/5.x Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the AES application.
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 Aura® Experience Portal Depending on the Operating System provided by customers, 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 provided by customers, the affected package may be installed on the underlying Operating System supporting the IMS application.
Avaya Aura® Presence Services Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the PS application.
Avaya Secure Access Link Gateway Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the SAL Gateway application.
Avaya Aura® System Manager 1.0 Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the SMGR application.
Avaya Voice Portal Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the VP application.

Recommended Actions for Software-Only Products:
In the event that the affected package is installed, Avaya recommends that customers follow 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 - March 29, 2013 - Initial Statement issued.
V 2.0 - December 20, 2013 - Updated AES, AS5300, CS1000, SM, SMGR, SP and US affected versions and actions, and IPO, IPOAS affected versions.
V 3.0 - June 12, 2015 - Updated affected versions and actions for AES, Conferencing, EP, One-X CES, Proactive Contact and actions for CS1K,Conferencing SE and VP.
V 4.0 - July 7, 2015 - Updated IQ affected versions and actions.
V 5.0 - May 31, 2017 - Updated IP Office 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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