Bug ID 1174033: The UPDATE EVENT is triggered with faulty session_info and resulting in core

Last Modified: Mar 30, 2024

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

Known Affected Versions:
15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 16.1.0, 16.1.1, 16.1.2,,, 16.1.3,,,,,, 17.0.0,,

Fixed In:
17.1.0, 16.1.4, 15.1.9

Opened: Oct 14, 2022

Severity: 3-Major


The UPDATE EVENT requires a proper initialization of the session_info which in turn is used to set the tcl pcb's cmdctx. With properly defined cmdctx, the sess_data is populated successfully. But, without proper initialization of the session_info makes the cmdctx to carry incorrect vaules, thus resulting in a core when populating the sess_data.


Results in a core.


Enable the Global UPDATE-EVENT option and make sure you log some session attributes as part of the UPDATE EVENT.



Fix Information

Triggering UPDATE EVENT is not causing any core.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips