CVE-2017-6138: Input Validation

Published Dec 21, 2017
·
Updated

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM and WebSafe software version 13.0.0 and 12.1.0 - 12.1.2, malicious requests made to virtual servers with an HTTP profile can cause the TMM to restart. The issue is exposed with BIG-IP APM profiles, regardless of settings. The issue is also exposed with the non-default "normalize URI" configuration options used in iRules and/or BIG-IP LTM policies.

Affected Software

22 affected components
F5 Big-ip Local Traffic Manager>=12.1.0<=12.1.2
F5 Big-ip Local Traffic Manager=13.0.0
F5 Big-ip Application Acceleration Manager>=12.1.0<=12.1.2
F5 Big-ip Application Acceleration Manager=13.0.0
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.2
F5 BIG-IP Advanced Firewall Manager=13.0.0
F5 BIG-IP Analytics>=12.1.0<=12.1.2
F5 BIG-IP Analytics=13.0.0
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.2
F5 BIG-IP Access Policy Manager=13.0.0
F5 BIG-IP Application Security Manager>=12.1.0<=12.1.2
F5 BIG-IP Application Security Manager=13.0.0
F5 BIG-IP DNS>=12.1.0<=12.1.2
F5 BIG-IP DNS=13.0.0
F5 Big-ip Global Traffic Manager>=12.1.0<=12.1.2
F5 Big-ip Global Traffic Manager=13.0.0
F5 Big-ip Link Controller>=12.1.0<=12.1.2
F5 Big-ip Link Controller=13.0.0
F5 Big-ip Policy Enforcement Manager>=12.1.0<=12.1.2
F5 Big-ip Policy Enforcement Manager=13.0.0
F5 Big-ip Websafe>=12.1.0<=12.1.2
F5 Big-ip Websafe=13.0.0

Event History

Dec 21, 2017
CVE Published
via MITRE·05:00 PM
Data Sourced
via MITRE·05:00 PM
DescriptionWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2017-6138?

The severity of CVE-2017-6138 is high.

2

Which software versions are affected by CVE-2017-6138?

Software versions 13.0.0 and 12.1.0 - 12.1.2 of F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM, and WebSafe are affected.

3

What is the vulnerability description of CVE-2017-6138?

A malicious request made to virtual servers with an HTTP profile can cause the TMM to restart in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM, and WebSafe software versions 13.0.0 and 12.1.0 - 12.1.2.

4

How can I mitigate the CVE-2017-6138 vulnerability?

There is no known mitigation for CVE-2017-6138 at this time. It is recommended to update to a fixed version.

5

Where can I find more information about CVE-2017-6138?

You can find more information about CVE-2017-6138 on [SecurityTracker](http://www.securitytracker.com/id/1040051) and [F5 Support](https://support.f5.com/csp/article/K34514540).

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