Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP GTM, LTM
Known Affected Versions:
11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2
Fixed In:
13.0.0, 12.1.2 HF1, 11.6.3.3
Opened: Oct 25, 2016 Severity: 3-Major
If an entry (resource record) is removed from a response policy zone it is possible that it may still trigger as a match for RPZ.
The badzone.example.com entries will continue to be blocked by RPZ, even though the item has been removed.
-- An RPZ zone contains an entry, for example badzone.example.com. -- That entry is subsequently removed.
Delete /var/db/zxfrd.bin and /var/db/tmmdns.bin and restart the system using the following command: bigstart restart zxfrd. This recreates the databases without the remnants of the deleted entries.
The deleted entries are now properly handled and no longer trigger incorrect matches.