Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1
Fixed In:
15.1.0, 14.1.2.5
Opened: May 30, 2019 Severity: 4-Minor
The SIP RFC states that if converting a message from a reliable transport to an unreliable transport, the proxy must guarantee delivery.
A system db variable was added to disable the TCP to UDP protection.
A adminstator required conversion of SIP messages from TCP to UDP and was willing to forgo the delivery requirement.
None
A DB variable has been added, Tmm.Sp.Sip.AllowTcpUdpConversion, possible values are enable|disable, the default value is disable. Enabling the DB variable enables the protection blocking TCP to UDP conversion for SIP messages.