CVE-2018-5535: Input Validation

Published Jul 19, 2018
·
Updated

On F5 BIG-IP 14.0.0, 13.0.0-13.1.0, 12.1.0-12.1.3, or 11.5.1-11.6.3 specifically crafted HTTP responses, when processed by a Virtual Server with an associated QoE profile that has Video enabled, may cause TMM to incorrectly buffer response data causing the TMM to restart resulting in a Denial of Service.

Affected Software

52 affected components
F5 Big-ip Local Traffic Manager>=11.2.1<=11.6.3
F5 Big-ip Local Traffic Manager>=12.1.0<=12.1.3
F5 Big-ip Local Traffic Manager>=13.0.0<=13.1.1
F5 Big-ip Local Traffic Manager=14.0.0
F5 Big-ip Application Acceleration Manager>=11.2.1<=11.6.3
F5 Big-ip Application Acceleration Manager>=12.1.0<=12.1.3
F5 Big-ip Application Acceleration Manager>=13.0.0<=13.1.1
F5 Big-ip Application Acceleration Manager=14.0.0
F5 BIG-IP Advanced Firewall Manager>=11.2.1<=11.6.3
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.3
F5 BIG-IP Advanced Firewall Manager>=13.0.0<=13.1.1
F5 BIG-IP Advanced Firewall Manager=14.0.0
F5 BIG-IP Analytics>=11.2.1<=11.6.3
F5 BIG-IP Analytics>=12.1.0<=12.1.3
F5 BIG-IP Analytics>=13.0.0<=13.1.1
F5 BIG-IP Analytics=14.0.0
F5 BIG-IP Access Policy Manager>=11.2.1<=11.6.3
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.3
F5 BIG-IP Access Policy Manager>=13.0.0<=13.1.1
F5 BIG-IP Access Policy Manager=14.0.0
F5 BIG-IP Application Security Manager>=11.2.1<=11.6.3
F5 BIG-IP Application Security Manager>=12.1.0<=12.1.3
F5 BIG-IP Application Security Manager>=13.0.0<=13.1.1
F5 BIG-IP Application Security Manager=14.0.0
F5 Big-ip Domain Name System>=11.2.1<=11.6.3
F5 Big-ip Domain Name System>=12.1.0<=12.1.3
F5 Big-ip Domain Name System>=13.0.0<=13.1.1
F5 Big-ip Domain Name System=14.0.0
F5 BIG-IP Edge Gateway>=11.2.1<=11.6.3
F5 BIG-IP Edge Gateway>=12.1.0<=12.1.3
F5 BIG-IP Edge Gateway>=13.0.0<=13.1.1
F5 BIG-IP Edge Gateway=14.0.0
F5 Big-ip Fraud Protection Service>=11.2.1<=11.6.3
F5 Big-ip Fraud Protection Service>=12.1.0<=12.1.3
F5 Big-ip Fraud Protection Service>=13.0.0<=13.1.1
F5 Big-ip Fraud Protection Service=14.0.0
F5 Big-ip Global Traffic Manager>=11.2.1<=11.6.3
F5 Big-ip Global Traffic Manager>=12.1.0<=12.1.3
F5 Big-ip Global Traffic Manager>=13.0.0<=13.1.1
F5 Big-ip Global Traffic Manager=14.0.0
F5 Big-ip Link Controller>=11.2.1<=11.6.3
F5 Big-ip Link Controller>=12.1.0<=12.1.3
F5 Big-ip Link Controller>=13.0.0<=13.1.1
F5 Big-ip Link Controller=14.0.0
F5 Big-ip Policy Enforcement Manager>=11.2.1<=11.6.3
F5 Big-ip Policy Enforcement Manager>=12.1.0<=12.1.3
F5 Big-ip Policy Enforcement Manager>=13.0.0<=13.1.1
F5 Big-ip Policy Enforcement Manager=14.0.0
F5 Big-ip Webaccelerator>=11.2.1<=11.6.3
F5 Big-ip Webaccelerator>=12.1.0<=12.1.3
F5 Big-ip Webaccelerator>=13.0.0<=13.1.1
F5 Big-ip Webaccelerator=14.0.0

Event History

Jul 19, 2018
CVE Published
via MITRE·02:00 PM
Data Sourced
via MITRE·02:00 PM
DescriptionWeakness

Frequently Asked Questions

1

What is the severity of CVE-2018-5535?

CVE-2018-5535 has been assigned a severity rating that may affect the availability of the F5 BIG-IP system due to potential Denial of Service.

2

How do I fix CVE-2018-5535?

To fix CVE-2018-5535, update your F5 BIG-IP Local Traffic Manager or associated modules to the latest patched version provided by F5 Networks.

3

What versions are affected by CVE-2018-5535?

CVE-2018-5535 affects F5 BIG-IP versions 14.0.0, 13.0.0-13.1.0, 12.1.0-12.1.3, and 11.5.1-11.6.3.

4

What is the potential impact of CVE-2018-5535?

The potential impact of CVE-2018-5535 is a Denial of Service due to TMM incorrectly processing specially crafted HTTP responses.

5

Is there a workaround for CVE-2018-5535?

While F5 recommends updating to a fixed version, another potential workaround is to disable the Video QoE feature on affected Virtual Servers.

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