Bug ID 1011445: Recovery after DoS attack uses SYN cookies inefficiently.

Last Modified: May 23, 2022

Bug Tracker

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

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6

Opened: Apr 15, 2021
Severity: 3-Major

Symptoms

The SYN cookie mechanism recovers inefficiently from a Denial-of_Service attack.

Impact

New legitimate connections not made efficiently.

Conditions

A virtual server is configured with a DoS profile that employs SYN cookies.

Workaround

N/A

Fix Information

None

Behavior Change