Bug ID 749227: MRF SIP ALG with SNAT: Temporary registration not extended by subsequent INVITE

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.1.0, 14.1.0.1

Fixed In:
15.0.0, 14.1.0.2, 14.0.1.1

Opened: Nov 08, 2018
Severity: 3-Major

Symptoms

INVITE message being processed operation creates a temporary registration entry for a unregistered subscriber, this registration entry is not extended if a subsequent invite occurs. This could cause the registration to expire during a call, thus allowing the reserved translated addresses to be provided to a different subscriber.

Impact

The system adds a temporary registration entry to the registration table. The lifetime for this entry is the max-session-timeout value from the siprouter-alg profile. Subsequent INVITES will not extend the lifetime. This could cause the registration to expire during a call, allowing the reserved translated addresses to be provided to a different subscriber.

Conditions

An INVITE message is received when unregistered-subscriber-callout attribute in the siprouter-alg profile

Workaround

None.

Fix Information

Subsequent INVITEs now extend the lifetime by another max-session-timeout value.

Behavior Change