NetSight
high7.5

CVE-2020-27718

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 …

Impact

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 products

VendorProductAffected versions
F5Big-Ip Advanced Web Application Firewall
from 11.6.1 through 11.6.5
from 12.1.0 through 12.1.5
from 13.1.0 before 13.1.3.5
from 14.1.0 before 14.1.3.1
from 15.0.0 before 15.1.1
from 16.0.0 before 16.0.1
F5Big-Ip Application Security Manager
from 11.6.1 through 11.6.5
from 12.1.0 through 12.1.5
from 13.1.0 before 13.1.3.5
from 14.1.0 before 14.1.3.1
from 15.0.0 before 15.1.1
from 16.0.0 before 16.0.1

References