Bug ID 465052: Some HTTP::cookie iRule commands can cause TMM to core if required arguments are missing

Last Modified: Apr 10, 2019

Bug Tracker

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

Known Affected Versions:
10.2.4, 11.2.0, 11.2.1, 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, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6, 11.5.2, 11.4.1 HF9

Opened: May 30, 2014
Severity: 3-Major
Related AskF5 Article:
K16060

Symptoms

TMM cores when executing an HTTP::cookie command in an iRule. If the command does not have the minimum required number of arguments, the code is not checking for this condition; it assumes they are there.

Impact

Traffic disrupted while tmm restarts.

Conditions

An iRule command must execute an HTTP::cookie command (such as "HTTP::cookie sanitize") with missing required arguments.

Workaround

Ensure all HTTP::cookie commands in iRules have the correct number of arguments. A work around is to add a line "log local0. some text" before the line "HTTP::cookie sanitize". Then, there will be no tmm crash.

Fix Information

Check to make sure all required arguments are present in an HTTP::cookie command prior to attempting to use them.

Behavior Change