Bug ID 1212081: The zxfrd segfault and restart loop due to incorrect packet processing

Last Modified: Sep 24, 2024

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

Known Affected Versions:
14.1.5.2, 14.1.5.3, 14.1.5.4, 14.1.5.6, 15.1.8, 15.1.8.1, 15.1.8.2, 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, 16.1.3.2, 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

Fixed In:
16.1.5

Opened: Dec 23, 2022

Severity: 2-Critical

Symptoms

The zxfrd process becomes stuck in a crash/restart loop

Impact

The zxfrd process manages zone transfers (AXFR) packets from backend DNS servers. If this process is crashing, zone updates will not be received, and DNS express may return stale results.

Conditions

During zone transfer, the zxfrd process may core when performing processing of an undisclosed packet.

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips