Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
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
When used an iRule to access a SIP header attribute with no value, TMM cores.
Traffic disrupted while tmm restarts.
Use iRule to access the value of SIP message header attribute with no value. Eg: "Supported: " IEOL "Session-Expires:" IEOL
No Workaround.
Fix includes adjusting the buffer offset properly to handle the empty header attributes while parsing the SIP message.