Bug ID 1188417: OpenSSL: DRBG Continuous RNG test failed: DRBG stuck.

Last Modified: Oct 30, 2024

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

Known Affected Versions:
15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 15.1.10.5, 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, 17.0.0.1, 17.0.0.2

Fixed In:
16.1.5

Opened: Nov 10, 2022

Severity: 3-Major

Symptoms

Kerberos SSO fails, and BIG-IP may reboot or become unresponsive with the following error log in /var/log/apm. err websso.7[8608]: OpenSSL: DRBG Continuous RNG test failed: DRBG stuck.

Impact

Traffic is disrupted while the system reboots or becomes unresponsive.

Conditions

-- WebSSO is configured

Workaround

None

Fix Information

Proper locking mechanisms have been introduced to prevent race conditions in multi-threaded WebSSO environments for the RAND_bytes API used in the OpenSSL crypto library.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips