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F5 Networks: K04048104: CGNAT LSN vulnerability CVE-2020-27720

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F5 Networks: K04048104: CGNAT LSN vulnerability CVE-2020-27720

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
12/24/2020
Created
02/19/2022
Added
02/18/2022
Modified
01/10/2024

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.

Solution(s)

  • f5-big-ip-upgrade-latest

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