Bug ID 474445: TMM crash when processing unexpected HTTP response in WAM

Last Modified: Feb 13, 2019

Bug Tracker

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

Known Affected Versions:
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, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1

Fixed In:
12.0.0, 11.6.1 HF2, 11.5.4 HF3

Opened: Aug 05, 2014
Severity: 3-Major
Related AskF5 Article:
K16916

Symptoms

TMM crash when processing unexpected HTTP response in WAM

Impact

Traffic disrupted while tmm restarts.

Conditions

Three conditions: WAM enabled virtual server WAM disabled during request phase WAM enabled during response phase

Workaround

Do not disable WAM during request processing unless it will also be disabled during response processing. If WAM is disabled, close the connection after the response with HTTP::Close to ensure it cannot be used for future requests.

Fix Information

TMM no longer crashes when processing unexpected HTTP response in WAM.

Behavior Change