Bug ID 478442: Core in sip filter due to sending of HUDEVT message while processing of HUDCTL message

Last Modified: Apr 10, 2019

Bug Tracker

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

Known Affected Versions:
11.0.0, 11.3.0, 11.4.0, 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, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4

Fixed In:
12.0.0, 11.6.0 HF5, 11.5.1 HF6, 11.4.1 HF6

Opened: Sep 08, 2014
Severity: 2-Critical


There is a tmm core caused by the looping of the SIP message.


The system cores. This might result in SIP traffic not being forwarded to the server.


The looping back of the message might occur because of a timing error, for example, in response to iRule logic that sends a HUDEVT message while processing a HUDCTL message.



Fix Information

Core in sip filter no longer occurs when sending HUDEVT message while processing of HUDCTL message.

Behavior Change