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.

CVSS v3 7.5 HIGH
CVSS v2.0 4.3 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://support.f5.com/csp/article/K04048104	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:f5:big-ip_carrier-grade_nat::::::::
	cpe:2.3:a:f5:big-ip_carrier-grade_nat::::::::
	cpe:2.3:a:f5:big-ip_carrier-grade_nat::::::::
	cpe:2.3:a:f5:big-ip_carrier-grade_nat::::::::
	cpe:2.3:a:f5:big-ip_local_traffic_manager::::::::
	cpe:2.3:a:f5:big-ip_local_traffic_manager::::::::
	cpe:2.3:a:f5:big-ip_local_traffic_manager::::::::
	cpe:2.3:a:f5:big-ip_local_traffic_manager::::::::

History

No history.

Information

Published : 2020-12-24 16:15

Updated : 2024-02-04 21:23

NVD link : CVE-2020-27720

Mitre link : CVE-2020-27720

CVE.ORG link : CVE-2020-27720

JSON object : View

Products Affected

f5

big-ip_local_traffic_manager
big-ip_carrier-grade_nat

CWE

NVD-CWE-noinfo

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