CVE-2020-27720 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5