Apache Tomcat is an open source software implementation for Java Servlet and JavaServer Pages (JSP) technologies.
The payload length in a WebSocket frame was not correctly validated. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2020-13935 to this issue.
More information about this vulnerability can be found in the security advisory issued by Apache Tomcat:
For assessment and severity classification details refer to Section 3 of
Avaya's Product Security Vulnerability Response Policy.
The "Resolution"
column will be updated as fixes are made available. Please reference the
"Information" column for any additional information regarding the affected
product.
| Product: | Version(s): | Resolution: | Information: |
|---|---|---|---|
| Avaya Aura® Application Enablement Services | 7.1 through 7.1.3.7, 8.0 through 8.1.2.0 | For 7.1.x, upgrade to 7.1.3.8 or later. For 8.x, upgrade to 8.1.3.0 or later. |
Avaya Aura® R7 is EOMS and this issue is addressed in a supported version, refer to Avaya Aura® Release 7 End of Manufacture Support. |
Avaya Aura® Application Server 5300:
|
3.0 SP13.1 thru 3.0 SP15.3 | Upgrade to 3.0 SP15.4 or later. | |
| Avaya CMS | R18.0.x through R19.1.x | Upgrade to R19.2 or later. | |
| Avaya Aura® Conferencing | 8.0 thru 8.0 SP16 | Upgrade to 8.0 SP17 or later. | |
| Avaya Aura® Experience Portal | 7.x | Upgrade to 8.0 or later. | |
| Avaya IP Office | 10.x, 11.0.x | Upgrade to 11.1 or later. | |
| Avaya IQ | 5.x | No fix planned | |
| Avaya Meeting Exchange | 6.2 through 6.2 SP9 | Upgrade to 6.2 SP10 or later. | |
| Avaya Aura® Messaging | 7.0 through 7.1.x | Upgrade to 7.2 or later. | |
| Avaya one-X® Client Enablement Services | 6.2.x | No fix planned. | |
| Avaya Proactive Contact | 5.1 through 5.2.0.1 | Upgrade to 5.2.0.2 or later. | |
| Avaya Session Border Controller for Enterprise | 7.x, 8.0 through 8.1.1.0 | Upgrade to 8.1.2.0 or later. | |
| Avaya Aura® Utility Services | 7.1 through 7.1.3.7 | Upgrade to 7.1.3.8 or later. | Avaya Aura® R7 is EOMS, refer to Avaya Aura® Release 7 End of Manufacture Support. |
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.
Avaya uses the Common Vulnerability Scoring System (CVSS) base score and
metrics as reported by the vendor for the affected component(s) or by the
National Institute of Standards and Technology in the National Vulnerability
Database. In some cases, such as where CVSS information is not available from
the vendor or NIST, Avaya will calculate the CVSS base score and metrics.
Customers are encouraged to calculate the Temporal and Environmental CVSS scores
to determine how the vulnerability could affect their specific implementation or
environment. For more information on CVSS and how the score is calculated, see
Common Vulnerability Scoring System: Specification Document.
| Vulnerability | CVSSv3 Base Score | CVSSv3 Metrics |
|---|---|---|
| CVE-2020-13935 |
7.5 (High) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Avaya software-only products operate on general-purpose operating systems. Occasionally vulnerabilities may be discovered in the applications installed on the system which may threaten the integrity of the underlying platform.
| Product: | Actions: |
|---|---|
| Aura® Application Enablement Services | If the affected package is installed, determine if Apache Tomcat is installed by the Avaya software-only product or as a separate application and follow the vendor's guidance. |
| Aura® Experience Portal | If the affected package is installed, determine if Apache Tomcat is installed by the Avaya software-only product or as a separate application and follow the vendor's guidance. |
| Avaya one-X Client Enablement Services | If the affected package is installed, determine if Apache Tomcat is installed by the Avaya software-only product or as a separate application and follow the vendor's guidance. |
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, IS PROVIDED "AS IS", AND IS APPLICABLE ONLY TO PRODUCT VERSIONS ELIGIBLE FOR MANUFACTURER SUPPORT IN ACCORDANCE WITH AVAYA PRODUCT LIFE CYCLE POLICY. 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 - September 16, 2020 - Initial Statement issued.
V 2.0 - April 30, 2021 - Updated versions and resolutions for AES, CMS, EP, MX,
Messaging, PC, SBCE and US.
V 3.0 - May 4, 2022 - Updated versions and resolutions for AAC, IPO and
one-X CES and set 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
[email protected].
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