CVE Vulnerabilities

CVE-2020-27718

Published: Dec 24, 2020 | Modified: Jul 21, 2021
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

When a BIG-IP ASM or Advanced WAF system running version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, or 11.6.1-11.6.5.2 processes requests with JSON payload, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process.

Affected Software

Name Vendor Start Version End Version
Big-ip_advanced_web_application_firewall F5 11.6.1 (including) 11.6.5 (including)
Big-ip_advanced_web_application_firewall F5 12.1.0 (including) 12.1.5 (including)
Big-ip_advanced_web_application_firewall F5 13.1.0 (including) 13.1.3.5 (excluding)
Big-ip_advanced_web_application_firewall F5 14.1.0 (including) 14.1.3.1 (excluding)
Big-ip_advanced_web_application_firewall F5 15.0.0 (including) 15.1.1 (excluding)
Big-ip_advanced_web_application_firewall F5 16.0.0 (including) 16.0.1 (excluding)
Big-ip_application_security_manager F5 11.6.1 (including) 11.6.5 (including)
Big-ip_application_security_manager F5 12.1.0 (including) 12.1.5 (including)
Big-ip_application_security_manager F5 13.1.0 (including) 13.1.3.5 (excluding)
Big-ip_application_security_manager F5 14.1.0 (including) 14.1.3.1 (excluding)
Big-ip_application_security_manager F5 15.0.0 (including) 15.1.1 (excluding)
Big-ip_application_security_manager F5 16.0.0 (including) 16.0.1 (excluding)

References