CVE-2020-27720
published 2020-12-24CVE-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…
high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
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.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| big-ip_ltm | cgnat | — | — |
| f5 | big-ip_carrier-grade_nat | 13.1.0 – 13.1.3 | — |
| f5 | big-ip_carrier-grade_nat | >= 14.1.0 < 14.1.3.1 | 14.1.3.1 |
| f5 | big-ip_carrier-grade_nat | >= 15.1.0 < 15.1.1 | 15.1.1 |
| f5 | big-ip_carrier-grade_nat | >= 16.0.0 < 16.0.1 | 16.0.1 |
| f5 | big-ip_cgnat | — | — |
| f5 | big-ip_local_traffic_manager | 13.1.0 – 13.1.3 | — |
| f5 | big-ip_local_traffic_manager | >= 14.1.0 < 14.1.3.1 | 14.1.3.1 |
| f5 | big-ip_local_traffic_manager | >= 15.1.0 < 15.1.1 | 15.1.1 |
| f5 | big-ip_local_traffic_manager | >= 16.0.0 < 16.0.1 | 16.0.1 |
| f5 | big-ip_ltm | — | — |