Last Modified: Sep 13, 2023
17.1.0, 16.1.4, 15.1.9
Opened: Apr 19, 2022 Severity: 3-Major
Some of the valid connections to a TCP virtual server may fail while the virtual server is in SYN cookie mode due to an attack.
Failed connections, service degradation.
-- BIG-IP i4x00 platform. -- TCP virtual server under SYN flood attack.
Disabling SYN cookie in the TCP or fastL4 profile is a possible workaround, but that would leave the virtual server open to SYN flood attacks.
The ePVA module is now correctly initialized on the i4x00 platform.