CVE-2016-9253: Input Validation

Published May 9, 2017
·
Updated

In F5 BIG-IP 12.1.0 through 12.1.2, specific websocket traffic patterns may cause a disruption of service for virtual servers configured to use the websocket profile.

Affected Software

30 affected components
F5 Big-ip Local Traffic Manager=12.1.0
F5 Big-ip Local Traffic Manager=12.1.1
F5 Big-ip Local Traffic Manager=12.1.2
F5 Big-ip Application Acceleration Manager=12.1.0
F5 Big-ip Application Acceleration Manager=12.1.1
F5 Big-ip Application Acceleration Manager=12.1.2
F5 BIG-IP Advanced Firewall Manager=12.1.0
F5 BIG-IP Advanced Firewall Manager=12.1.1
F5 BIG-IP Advanced Firewall Manager=12.1.2
F5 BIG-IP Analytics=12.1.0
F5 BIG-IP Analytics=12.1.1
F5 BIG-IP Analytics=12.1.2
F5 BIG-IP Access Policy Manager=12.1.0
F5 BIG-IP Access Policy Manager=12.1.1
F5 BIG-IP Access Policy Manager=12.1.2
F5 BIG-IP Application Security Manager=12.1.0
F5 BIG-IP Application Security Manager=12.1.1
F5 BIG-IP Application Security Manager=12.1.2
F5 Big-ip Domain Name System=12.1.0
F5 Big-ip Domain Name System=12.1.1
F5 Big-ip Domain Name System=12.1.2
F5 Big-ip Link Controller=12.1.0
F5 Big-ip Link Controller=12.1.1
F5 Big-ip Link Controller=12.1.2
F5 Big-ip Policy Enforcement Manager=12.1.0
F5 Big-ip Policy Enforcement Manager=12.1.1
F5 Big-ip Policy Enforcement Manager=12.1.2
F5 Big-ip Websafe=12.1.0
F5 Big-ip Websafe=12.1.1
F5 Big-ip Websafe=12.1.2

Event History

May 9, 2017
CVE Published
via MITRE·03:00 PM
Data Sourced
via MITRE·03:00 PM
DescriptionWeakness

Frequently Asked Questions

1

What is the severity of CVE-2016-9253?

The severity of CVE-2016-9253 is significant as it can disrupt service for virtual servers using the websocket profile.

2

How do I fix CVE-2016-9253?

To fix CVE-2016-9253, upgrade F5 BIG-IP to version 12.1.3 or later.

3

Which versions are affected by CVE-2016-9253?

CVE-2016-9253 affects F5 BIG-IP versions 12.1.0 to 12.1.2.

4

What type of vulnerability is CVE-2016-9253?

CVE-2016-9253 is a denial-of-service vulnerability affecting websocket traffic.

5

What products are impacted by CVE-2016-9253?

CVE-2016-9253 impacts several F5 BIG-IP products including Local Traffic Manager, Application Security Manager, and others within the 12.1.0 to 12.1.2 versions.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203