K03386032 : BIG-IP VE interface vulnerability CVE-2020-5881

Security Advisory Description

When the BIG-IP Virtual Edition (VE) is configured with VLAN groups and there are devices configured with OSPF connected to it, the Network Device Abstraction Layer (NDAL) Interfaces can lock up and in turn disrupting the communication between the mcpd and tmm processes (CVE-2020-5881).

Impact

This issue only affects BIG-IP VE. The BIG-IP system temporarily fails to process traffic as it recovers from a Traffic Management Microkernel (TMM) restart, and devices configured in a device group may fail over.