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.

Published: Dec 24, 2020
Updated: Apr 14, 2023
CVE: CVE-2020-27720
Severity: High
Exploit:

CVSS v3:

Severity: High
Score: 7.5
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

Severity: Low
Score: 4.3
AV:N/AC:M/Au:N/C:N/I:N/A:P

No CWE or OWASP classifications available.

Affected Software
References

Software	From	Fixed in
f5 / big-ip_local_traffic_manager	13.1.0	13.1.3.x
f5 / big-ip_local_traffic_manager	15.1.0	15.1.1
f5 / big-ip_local_traffic_manager	16.0.0	16.0.1
f5 / big-ip_local_traffic_manager	14.1.0	14.1.3.1
f5 / big-ip_carrier-grade_nat	13.1.0	13.1.3.x
f5 / big-ip_carrier-grade_nat	14.1.0	14.1.3.1
f5 / big-ip_carrier-grade_nat	15.1.0	15.1.1
f5 / big-ip_carrier-grade_nat	16.0.0	16.0.1

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

Vulnerability Database

289,599

CVE-2020-27720