In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM and WebSafe software version 13.0.0 and 12.1.0 - 12.1.2, undisclosed HTTP requests may cause a denial of service.
https://support.f5.com/csp/article/K25033460
https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-15198