OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a full-strength, general purpose cryptography library.
A flaw was found in the way OpenSSL determined which hashing algorithm to use when TLS protocol version 1.2 was enabled. This could possibly cause OpenSSL to use an incorrect hashing algorithm, leading to a crash of an application using the library. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2013-6449 to this issue.
It was discovered that the Datagram Transport Layer Security (DTLS) protocol implementation in OpenSSL did not properly maintain encryption and digest contexts during renegotiation. A lost or discarded renegotiation handshake packet could cause a DTLS client or server using OpenSSL to crash. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2013-6450 to this issue.
A NULL pointer dereference flaw was found in the way OpenSSL handled TLS/SSL protocol handshake packets. A specially crafted handshake packet could cause a TLS/SSL client using OpenSSL to crash. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2013-4353 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 CMS | R17 through R17 R2 | Medium | Upgrade to R17 R3 or later. |
| Avaya Breeze™ Platform | 2.x | Medium | Upgrade to 3.0 or later. |
| Avaya Aura® Experience Portal | 6.0 through 6.0.2, 7.0 | Medium | For 6.x, upgrade to 6.0.3 and Avaya Linux for EP 6.0.3 and install Security Updates for 6.0.3 For 7.x, upgrade to 7.0.1 and Avaya Linux for EP 7.0.1 and install Security Updates for 7.0.1 |
| Avaya IP Office Server Edition | 8.1 through 9.1.3 | Medium | Upgrade to 9.1.4 or later |
| Avaya IP Office Application Server | 8.x through 9.1.3 | Medium | Upgrade to 9.1.4 or later |
| Avaya one-X® Client Enablement Services | 6.2 through 6.2 SP2 | Medium | Upgrade to 6.2 SP3 or later. |
| Avaya Aura® Session Manager | 6.3 through 6.3.7 | Medium | Upgrade to 6.3.8 or later. |
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.
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-2013-4353 CVE-2013-6449 |
The risk is rated Medium for all Avaya products because exploiting this vulnerability may deny or crash a secure connection. |
|
CVE-2013-6450 |
The risk is rated None for all Avaya products because DTLS is not used 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 | Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the AES 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. |
| Avaya Secure Access Link Gateway | Depending on the Operating System installed, the affected package may be installed on the underlying Operating System supporting the SAL Gateway application. |
| Avaya Voice Portal | Depending on the Operating System installed, 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 following the 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 - February 21, 2014 - Initial Statement issued.
V 2.0 - April 20, 2015 - Updated affected versions and actions for CMS, Breeze, EP, one-X CES, SM.
V 3.0 - August 2, 2016 - Updated IP Office Server Edition affected versions and actions.
V 4.0 - May 31, 2017 - Updated IP Office affected versions and 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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