CVE-2020-27715

Severity

75%

Complexity

39%

Confidentiality

60%

On BIG-IP 15.1.0-15.1.0.5 and 14.1.0-14.1.3, crafted TLS request to the BIG-IP management interface via port 443 can cause high (~100%) CPU utilization by the httpd daemon.

CVSS 3.1 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 7.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C).

Overview

Type

F5

First reported 4 years ago

2020-12-24 16:15:00

Last updated 4 years ago

2020-12-28 17:22:00

Affected Software

F5 Big-IP Access Policy Manager (APM)

F5 Big-IP Advanced Firewall Manager (AFM)

F5 Big-IP Analytics

F5 Big-IP Application Acceleration Manager (AAM)

F5 Big-IP Application Security Manager (ASM)

F5 Big-IP Domain Name System (DNS)

F5 Big-IP Fraud Protection Service (FPS)

F5 Big-IP Global Traffic Manager (GTM)

F5 Big-IP Link Controller

F5 Networks Big-IP Local Traffic Manager (LTM)

F5 Big-IP Policy Enforcement Manager (PEM)

References

https://support.f5.com/csp/article/K25691186

https://support.f5.com/csp/article/K25691186

Vendor Advisory

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