Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP APM
Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3
Fixed In:
13.1.0, 13.0.1
Opened: Aug 10, 2017 Severity: 3-Major Related Article:
K21519702
The BIG-IP APM websso daemon may restart when processing log messages. As a result of this issue, you may encounter one or more of the following symptoms: -- The system generates a websso core file to the /shared/core/ directory. -- Users are unable to authentication using SSO methods. -- In the /var/log/daemon.log file, you observe messages similar to the following example: emerg logger: Re-starting websso
The BIG-IP APM system is unable to provide SSO authentication services while the websso daemon restarts.
This issue occurs when all of the following conditions are met: -- You configure the BIG-IP APM system to provide authentication using single sign-on (SSO). -- Memory corruption occurs in the websso daemon while processing a log message.
None.
Websso process no longer produces a crash in rare cases when trying to write a log message when no APM log setting applied.