Bug ID 1395257: Processes that are using libcrypto during their startup are causing high CPU usage

Last Modified: Jun 13, 2024

Affected Product(s):
BIG-IP TMOS(all modules)

Opened: Nov 09, 2023

Severity: 3-Major


Upon creating a new connection, the initialization of the OpenSSL library triggers self-tests, resulting in high CPU usage.


High CPU usage due to the loading of the OpenSSL library whenever a new connection is created.


Enable FIPS mode and use SIP monitors. Initializing SIP monitors will also initialize the OpenSSL library, causing high CPU consumption.


Disable FIPS mode by setting the environment variable SECURITY_FIPS140_COMPLIANCE to false.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips