Last Modified: Jul 24, 2024
Affected Product(s):
BIG-IP AFM
Known Affected Versions:
16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 17.0.0, 17.0.0.1, 17.0.0.2, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3
Fixed In:
16.1.5
Opened: Oct 26, 2023 Severity: 3-Major
When Traffic Matching Criteria (TMC) port list range is configured that includes maximum port value of 65535, counter is incremented till 65535 and wraps back to 0, as the variable used to store the counter is uint16_t.
The daemon dwbld consumes 100% CPU impacting system performance.
- AFM license enabled. - Daemon dwbld enabled - Any TMC port list configured with maximum port value of 65535
Avoid configuring maximum port value of 65535 in TMC port list range.
The counter is changed to uint32_t to avoid rollover when maximum port value is included in port list range.