Last Modified: May 27, 2020
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Known Affected Versions:
15.0.0, 15.0.1, 18.104.22.168, 22.214.171.124, 126.96.36.199, 15.1.0, 188.8.131.52, 184.108.40.206
Opened: Apr 25, 2020
Over time, memory is allocated by the TMM processes for use as 'xdata' buffers, yet this memory is never de-allocated; it is leaked and becomes unusable. Eventually a disruption of service occurs.
Traffic disrupted while tmm restarts.
-- The BIG-IP system has been running for 8 weeks or longer without a system restart. -- The BIG-IP system's internal risk-policy subsystem (used by the security feature modules) has not been configured to communicate with an external risk-policy server. -- In a vCMP configuration, the BIG-IP 'host' instance is always susceptible, since no security features can be configured in its context.
Default configuration of security mechanism no longer causes memory leak in TMM.