CVE-2020-27720

On BIG-IP LTM/CGNAT version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5, when processing NAT66 traffic with Port Block Allocation (PBA) mode and SP-DAG enabled, and dag-ipv6-prefix-len configured with a value less than the default of 128, an undisclosed traffic pattern may cause the Traffic Management Microkernel (TMM) to restart.

Score

CVSS 3.1 7.5 High

Status

Modified - f5sirt@f5.com

Published

2020-12-24

Last modified

2024-08-04

Affected products

• Big-ip Carrier-grade Nat (F5)
• Big-ip Local Traffic Manager (F5)

References

• https://support.f5.com/csp/article/K04048104