Bug ID 674903: TMM halts and restarts in response to certain requests.

Last Modified: Jul 12, 2023

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

Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:

Opened: Jul 20, 2017

Severity: 2-Critical

Related Article: K32302399


TMM halts and restarts under certain conditions relating to Device ID or Fingerprinting.


TMM halts and restarts. Traffic disrupted while tmm restarts.


Security policy or DoS Profile that uses Device ID or Fingerprinting.


Changing the Device ID matching mode to 'simple' will prevent this crash from happening. To do so, run the following command: tmsh modify sys db did.match_mode value simple

Fix Information

TMM no longer halts and restarts under these conditions.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips