Memory leak in the last hop kernel module in F5 BIG-IP LTM, GTM, and Link Controller 10.1.x, 10.2.x before 10.2.4 HF13, 11.x before 11.2.1 HF15, 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.x before HF6, BIG-IP AAM 11.4.x, 11.5.x before 11.5.3 HF2 and 11.6.0 before HF6, BIG-IP AFM and PEM 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.0 before HF6, BIG-IP Analytics 11.x before 11.2.1 HF15, 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.0 before HF6, BIG-IP APM and ASM 10.1.0 through 10.2.4, 11.x before 11.2.1 HF15, 11.3.x, 11.4.x, 11.5.x before 11.5.3 HF2, and 11.6.0 before HF6, BIG-IP Edge Gateway, WebAccelerator, and WOM 10.1.x, 10.2.x before 10.2.4 HF13, 11.x before 11.2.1 HF15, and 11.3.0, BIG-IP PSM 10.1.x, 10.2.x before 10.2.4 HF13, 11.x before 11.2.1 HF15, 11.3.x, and 11.4.x before 11.4.1 HF, Enterprise Manager 3.0.0 through 3.1.1, BIG-IQ Cloud and Security 4.0.0 through 4.5.0, BIG-IQ Device 4.2.0 through 4.5.0, and BIG-IQ ADC 4.5.0 might allow remote attackers to cause a denial of service (memory consumption) via a large number of crafted UDP packets.