Last Modified: Apr 10, 2019
Affected Product:
See more info
BIG-IP PEM
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, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 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
Fixed In:
13.0.0, 12.1.2
Opened: Jul 29, 2016
Severity: 2-Critical
When the BIG-IP is in DHCP forwarding mode, if the giaddr field in the unicast DHCP renewal packet is set to DHCP relay agent IP address by relay agent, tmm may crash when active system connections are deleted from cli or via aging.
Traffic disrupted while tmm restarts.
1) BIG-IP in forwarding mode 2) giaddr field in unicast DHCP renewal packet is set to IP address of relay agent (Typically, it is set to 0 by the DHCP client)
This is not a typical network setup. Usually DHCP relay agent will not modify DHCP renewal packet to insert its own address as giaddr.
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