Bug ID 571593: A BD core on specific server behavior with a specific configuration

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.6.3,, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:

Opened: Feb 03, 2016

Severity: 2-Critical


A BD core.


Traffic disturbance.


-- A response that has many cookies. -- Many cookies are enforced, and are generating big cookies. -- Response logging is enabled.


None. Note: In a typical configuration, enforcing that many cookies is not needed. You can reduce the list of enforced cookies only to the relevant ones, which can help reduce the likelihood of this issue occurring.

Fix Information

BD no longer cores under these conditions.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips