Bug ID 494319: Proxy SSL caused tmm to core by dereferencing a null pointer

Last Modified: Oct 06, 2020

Bug Tracker

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

Known Affected Versions:
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

Opened: Dec 03, 2014
Severity: 2-Critical
Related AskF5 Article:


When server side SSL decides to 'passthrough' the traffic, it requests that the client side convert itself to 'passthrough' mode, but the client side SSL was already in a closing state (due to timeout).


Traffic disrupted while tmm restarts.


When both Proxy SSL and Proxy SSL Passthrough are enabled. Proxy SSL changes to passthrough mode, but the client side is closed or has timed out.



Fix Information

The system now checks that the state is not in closing state before updating the statistics.

Behavior Change