Bug ID 624023: TMM cores in iRule when accessing a SIP header that has no value

Last Modified: Oct 01, 2018

Bug Tracker

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

Known Affected Versions:
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, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2

Fixed In:
13.0.0, 12.1.2 HF1, 11.6.3

Opened: Oct 20, 2016
Severity: 2-Critical

Symptoms

When used an iRule to access a SIP header attribute with no value, TMM cores.

Impact

Traffic disrupted while tmm restarts.

Conditions

Use iRule to access the value of SIP message header attribute with no value. Eg: "Supported: " IEOL "Session-Expires:" IEOL

Workaround

No Workaround.

Fix Information

Fix includes adjusting the buffer offset properly to handle the empty header attributes while parsing the SIP message.

Behavior Change