Bug ID 853325: TMM Crash while parsing form parameters by SSO.

Last Modified: Jul 12, 2023

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

Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,, 15.0.0, 15.0.1,,, 15.1.0,

Fixed In:

Opened: Nov 27, 2019

Severity: 3-Major


When a form is received in the response, TMM crashes when SSO identifies the form parameter, and logs the Form parameter value and type in SSOv2 form-based passthrough log.


TMM crash when Passthrough mode is enabled in SSO. Traffic disrupted while tmm restarts.


-- When any of the form parameters that SSO receives in the response does not have a value. -- Passthrough mode is enabled in SSO.


Do not use Passthrough mode with SSO.

Fix Information

TMM does not crash when Passthrough mode is enabled in SSO, and SSO receives any valid form in a response.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips