Last Modified: Jul 12, 2023
Affected Product(s):
BIG-IP LTM, PEM
Known Affected Versions:
11.3.0, 11.4.0, 11.4.1
Fixed In:
11.5.1, 11.5.0
Opened: Jan 03, 2014 Severity: 2-Critical
When an ICAP profile specifies headers with both ${SERVER_IP} and ${SERVER_PORT} macros, under certain conditions expansion of ${SERVER_PORT} can fail and in some cases crash the TMM.
Potential incorrect expansion of the ${SERVER_PORT} macro, and in the worse case a TMM crash. Traffic disrupted while tmm restarts.
Traffic passes through an internal virtual server with an ICAP profile that uses both ${SERVER_IP} and ${SERVER_PORT} macros in its ICAP headers, where replacemement of the ${SERVER_IP} macros changes the length of the header.
Adjust headers to avoid the conditions described if possible.
ICAP profiles can now freely use ${SERVER_IP} and ${SERVER_PORT} macros.