The RESOLV::lookup iRule command in F5 BIG-IP LTM, APM, ASM, and Link Controller 10.2.1 up to and including 10.2.4, 11.2.1, 11.4.x, 11.5.x prior to 11.5.4 HF2, 11.6.x prior to 11.6.1, and 12.0.0 before HF3; BIG-IP AAM, AFM, and PEM 11.4.x, 11.5.x prior to 11.5.4 HF2, 11.6.x prior...