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

Last Modified: May 14, 2019

Bug Tracker

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3, 11.6.3.1, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4

Fixed In:
12.1.0, 11.6.3.2

Opened: Feb 03, 2016
Severity: 2-Critical

Symptoms

A BD core.

Impact

Traffic disturbance.

Conditions

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

Workaround

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