CVE-2017-6138

moderate-risk
Published 2017-12-21

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.

Do I need to act?

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0.66% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (20)

Big-Ip Dns
Big-Ip Dns

Affected Vendors

F5

References (4)

Third Party Advisory http://www.securitytracker.com/id/1040051
Issue Tracking https://support.f5.com/csp/article/K34514540
Third Party Advisory http://www.securitytracker.com/id/1040051
Issue Tracking https://support.f5.com/csp/article/K34514540
48
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 2/34 · Minimal
Exposure 20/34 · Moderate