VULNERABILITY INTELLIGENCE

CVE-2017-6138

CVSS score7.5 HIGH

EPSS probability1.58%

CISA KEVNot currently listed

Published2017-12-21

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

CWE-20: Improper Input Validation

Primary references

f5sirt@f5.com — Third Party Advisory, VDB Entry
f5sirt@f5.com — Issue Tracking, Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Mitigation, Vendor Advisory