Bug ID 747727: HTTP Profile Request Header Insert Tcl error

Last Modified: Jul 12, 2023

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

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5

Fixed In:
15.0.0, 14.1.0.6

Opened: Oct 23, 2018

Severity: 2-Critical

Symptoms

A TMM crash.

Impact

In some cases this can cause TMM to crash. Traffic disrupted while tmm restarts.

Conditions

When the HTTP profile Request Header Insert field contains a Tcl interpreted string, Tcl is executed to expand the string before the header is inserted into the request header block. If a Tcl error occurs

Workaround

You can use either of the following to mitigate this: -- Verify that your Tcl executes correctly in all cases. -- Use a static string.

Fix Information

TMM no longer crashes under these conditions.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips