The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.
A denial of service flaw was found in the way BIND followed DNS delegations. A remote attacker could use a specially crafted zone containing a large number of referrals which, when looked up and processed, would cause named to use excessive amounts of memory or crash. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2014-8500 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.x | None | See Mitigating Factors table below. |
Avaya Aura® Application Server 5300:
|
3.x | None | See Mitigating Factors table below. |
Avaya IQ | 5.x | None | See Mitigating Factors table below. |
Avaya CMS | 17.x | None | See Mitigating Factors table below. |
Avaya Aura® Collaboration Environment | 2.x thru 3.0 SP3 | Low | Upgrade to 3.0 SP4 or later. |
Avaya Aura® Communication Manager | 6.x | None | See Mitigating Factors table below. |
Avaya Communication Server 1000:
|
7.x | None | See Mitigating Factors table below. |
Avaya Aura® Conferencing | 7.x, 8.x | None | See Mitigating Factors table below. |
Avaya Aura® Conferencing Standard Edition | 6.x | None | See recommended actions and Mitigating Factors table below. It is recommended that customers migrate to one of Avaya's conferencing solutions including Aura(r) Conferencing. |
Avaya Aura® Experience Portal | 6.x, 7.x | None | See Mitigating Factors table below. |
Avaya IP Office Server Edition | 8.1, 9.x | None | See Mitigating Factors table below. |
Avaya IP Office Application Server | 9.x | None | See Mitigating Factors table below. |
Avaya Meeting Exchange | 6.x | None | See Mitigating Factors table below. |
Avaya Message Networking | 6.x | None | See Mitigating Factors table below. |
Avaya Aura® Messaging | 6.x | None | See Mitigating Factors table below. |
Avaya one-X® Client Enablement Services | 6.x | None | See Mitigating Factors table below. |
Avaya Proactive Contact | 5.x | None | See Mitigating Factors table below. |
Avaya Aura® Session Manager | 6.x | Low | Upgrade to 7.0 or later. |
Avaya Aura® System Manager | 6.x | None | See Mitigating Factors table below. |
Avaya Aura® System Platform | 6.x | None | See Mitigating Factors table below. |
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.
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-2014-8500 |
This is a Low Risk for Collaboration Environment as named is not configured
or running by default. This is a Low risk for Session Manager because the DNS is used only for local hostname resolution and does not do lookups for non-standard zones. There is no risk for all other listed products because exploit requires bind (named) and it is not installed, only bind-libs or bind-utils is installed. |
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.
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 - January 15, 2015 - Initial Statement issued.
V 2.0 - October 15, 2015 - Updated CE and SM affected versions and actions, and
set the 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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