Last Modified: Dec 07, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
17.1.0, 17.0.0, 16.1.2.2, 16.1.2.1, 16.1.2, 15.1.8, 15.1.7, 15.1.6.1, 15.1.6, 15.1.5.1, 15.1.5, 15.1.4.1
Fixed In:
17.1.0, 16.1.3.1, 15.1.9
Opened: May 27, 2022 Severity: 2-Critical
If a virtual server has an iRule performing SSL payload processing in CLIENTSSL_DATA, TMM fails to process or forward an ingress TCP FIN from a client, leaving the connection in a zombie state until it eventually idles out.
Unexpected growth in the number of connections idling on a virtual server leads to memory pressure.
The issue occurs only when SSL::collect is used in CLIENTSSL_DATA when CLIENTSSL_DATA { log local0. "." SSL::release SSL::collect }
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