Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3
Fixed In:
13.0.0, 12.1.3.4
Opened: Jul 12, 2016 Severity: 3-Major
If a DATA_FIN is received with a DATA_ACK that acknowledges data, the BIG-IP will not process the DATA_ACK and will not shutdown the connection properly as it thinks there is still outstanding data to be acknowledged.
The connection is not closed properly and eventually times out.
A TCP profile with Multipath TCP enabled is attached to a virtual server, and a DATA_FIN that DATA_ACKs data is received on an MPTCP connection.
None
Fixed DATA_FIN handling.