Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
10.2.4, 11.2.1, 11.4.1, 11.5.1, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2, 11.5.2 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4
Fixed In:
12.0.0, 11.6.0 HF5, 11.5.3, 11.4.1 HF6, 11.2.1 HF15, 10.2.4 HF12
Opened: Jun 11, 2014 Severity: 3-Major
Heartbeat, UDP packet with only double CRLF, on existing SIP flow might result in connection loss.
Connection might be terminated.
SIP heartbeat message, a UDP packet with double CRLF, sent by the client to the server.
None.
The heartbeat SIP message, which is a UDP packet with CRLF, is ignored and connection is maintained.