Bug ID 545704: TMM might core when using HTTP::header in a serverside event

Last Modified: Apr 10, 2019

Bug Tracker

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

Known Affected Versions:
11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 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, 12.0.0, 12.0.0 HF1, 12.0.0 HF2

Fixed In:
12.0.0 HF3, 11.6.1 HF1, 11.5.4

Opened: Sep 14, 2015
Severity: 3-Major
Related AskF5 Article:


In certain circumstances TMM might core when using an HTTP iRule command in a HTTP_REQUEST_SEND serverside event.


The command might either return invalid value or lead to a condition where TMM might core.


- iRule with an HTTP command in a serverside event prior to the serverside being completely established, such as HTTP_REQUEST_SEND. - OneConnect configured on the virtual server.


Use the {clientside} Tcl command to execute on the client side. Alternatively, you might use the HTTP_REQUEST_RELEASE event for HTTP inspection/modification on the server-side.

Fix Information

TMM no longer cores when using HTTP iRule commands on the server-side of the HTTP_REQUEST_SEND event.

Behavior Change