Bug ID 1156889: TMM 'DoS Layer 7' memory leak during Bot Defense redirect actions

Last Modified: Jan 06, 2023

Bug Tracker

Affected Product:  See more info
BIG-IP ASM(all modules)

Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1

Opened: Sep 21, 2022
Severity: 3-Major

Symptoms

When using bot-defense profile with a browser verification and performing redirect actions, there is a memory leak in TMM.

Impact

Degraded performance, potential eventual out-of-memory.

Conditions

- The bot-defense profile with "Verify After Access" or "Verify Before Access" browser verification is configured. - Surfing using a browser, during grace period (5 Minutes after config change) to a non-qualified URL, or configuring "Validate Upon Request" in "Cross Domain Requests" configuration, and configuring A and B as "Related Site Domains". - Surfing using a browser from Domain A to Domain B.

Workaround

None

Fix Information

None

Behavior Change