The libxml2 library is a development toolbox providing the implementation of various XML standards.
A denial of service flaw was found in the way libxml2 performed string substitutions when entity values for entity references replacement was enabled. A remote attacker could provide a specially-crafted XML file that, when processed by an application linked against libxml2, would lead to excessive CPU consumption. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2013-0338 to this issue.
More information about these vulnerabilities can be found in the security advisory issued by Red Hat:
| Product: | Affected Version(s): | Risk Level: | Actions: |
|---|---|---|---|
| Avaya Aura® Application Enablement Services | 5.x, 6.1.x, 6.2, 6.3 | Low | For 6.1.x and earlier, upgrade to 6.2 and install security patch 1 or later,
or upgrade to 6.3.1 or later. For 6.2, install security patch 1 or later, or upgrade to 6.3.1 or later. For 6.3, upgrade to 6.3.1 or later. |
Avaya Aura® Application Server 5300:
|
2.x, 3.x | Low | Upgrade to 3.0 SP6 or later. |
| Avaya IQ | 5.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 to migrate to Avaya Oceanalytics for Elite. |
| Avaya Aura® Communication Manager | 6.0 thru 6.3 | Low | Upgrade to 6.3 and install Security Service Pack (SSP) 1 or later. For 6.0.1, install SSP 2 or later. |
Avaya Communication Server 1000:
|
6.x, 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 | 7.0 | 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.x | Low | Upgrade to 7.0 or later. |
| Avaya IP Office Server Edition | 8.x, 9.0 including SP1 and SP2 | Low | Upgrade to 9.0 SP3 or later. |
| Avaya IP Office Application Server | 8.x, 9.0 including SP1 and SP2 | Low | Upgrade to 9.0 SP3 or later. |
| Avaya Meeting Exchange | 6.2 thru 6.2 SP2 | Low | Upgrade to 6.2 SP3 or later. |
| Avaya Aura® Messaging | 6.0.x, 6.1.x, 6.2.x | Low | Upgrade to 6.3 or later. |
| Avaya one-X® Client Enablement Services | 6.1.x, 6.2 | Low | Upgrade to 6.2 SP1 or later. |
| Avaya Aura® Presence Services | 6.x | Low | 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.x, 5.1 | Low | Upgrade to 5.1.1 or later. |
| Avaya Aura® Session Manager | 1.x, 5.x, 6.0.x thru 6.3.3 | Low | Upgrade to 6.3.4 or later. |
| Avaya Aura® System Manager | 5.x, 6.0.x thru 6.3.3 | Low | Upgrade to 6.3.4 or later. |
| Avaya Aura® System Platform | 1.x through 6.3.3 | Low | Upgrade to 6.3.4 or later. |
| Avaya Aura® Communication Manager Utility Services | 6.0.x thru 6.2.x | Low | Upgrade to 6.3 or later. |
| Avaya Voice Portal | 5.x | Low | Upgrade to Experience Portal 7.0 or later. |
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.
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-2013-0338 |
This is a low risk for all products because processing of remotely provided XML files from non-authenticated users is not allowed by default. |
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.
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.
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.
V 1.0 - April 11, 2013 - Initial Statement issued.
V 2.0 - October 29, 2013 - Changed AES, AS5300, SM, SMGR and CMUS affected
versions and actions. Changed CS1000 and Conferencing SE actions.
V 3.0 - January 8, 2014 - Changed CM, Conferencing, EP and VP affected versions and actions.
V 4.0 - July 29, 2014 - Changed IPOSE, IPOAS, Messaging, one-X CES and PC
affected versions and actions.
V 5.0 - February 13, 2015 - Changed SP affected versions and actions.
V 6.0 - July 21, 2016 - Changed Meeting Exchange and Presence Services affected versions and actions.
V 7.0 - May 25, 2017 - Changed IQ actions and set Advisory status to Final.
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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