Bug ID 678001: Websso crash due to uninitialized member in websso context object while processing a log message

Last Modified: Jul 12, 2023

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

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.



Fix Information

Websso process no longer produces a crash in rare cases when trying to write a log message when no APM log setting applied.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips