CVE-2017-6138

Name: CVE-2017-6138
Creator: NVD / NIST
Published: 2017-12-21T17:29:00.527+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.58%

Last modified Jun 17, 2026

CVE-2017-6138 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.58% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

1.58%

72.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
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

References

http://www.securitytracker.com/id/1040051Third Party Advisory, VDB Entry
https://support.f5.com/csp/article/K34514540Issue Tracking, Mitigation, Vendor Advisory
http://www.securitytracker.com/id/1040051Third Party Advisory, VDB Entry
https://support.f5.com/csp/article/K34514540Issue Tracking, Mitigation, Vendor Advisory

Timeline

Published: Dec 21, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-6138?

How severe is CVE-2017-6138?

Severity scoring for CVE-2017-6138 is pending analysis. The EPSS model estimates a 1.58% probability of exploitation in the next 30 days.

How do I fix CVE-2017-6138?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-6138?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST