Bug ID 1060393: Extended high CPU usage caused by JavaScript Obfuscator.

Last Modified: May 22, 2024

Affected Product(s):
BIG-IP ASM(all modules)

Known Affected Versions:
16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 17.0.0, 17.0.0.1, 17.0.0.2, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3

Opened: Nov 09, 2021

Severity: 3-Major

Related Article: K24102225

Symptoms

The Obfuscator process (compiler.jar) consumes excessive CPU for an extended period.

Impact

High CPU usage on the device.

Conditions

Any one of these conditions: -- FPS is provisioned -- ASM is provisioned and a Bot profile is attached to a virtual server -- ASM Policy with a ClientSide feature enabled is attached to a virtual server -- DoS profile with Captcha/CSI mitigation is attached to a virtual server

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips