Bug ID 1125189: Adding or removing iRules from a virtual server with traffic matching criteria may cause that virtual server to stop passing traffic

Last Modified: Apr 11, 2024

Affected Product(s):
BIG-IP LTM, TMOS(all modules)

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3

Fixed In:
17.1.0, 17.0.0.1, 16.1.3.1, 15.1.6.1, 14.1.5.1

Opened: Jul 08, 2022

Severity: 2-Critical

Symptoms

When an iRule is added to or removed from a virtual server that contains a traffic matching criteria object, the virtual-address may be improperly removed from the config which will cause the virtual to stop passing traffic.

Impact

Virtual server may stop processing traffic

Conditions

-- Traffic matching criteria in use. -- iRules are added or removed. Or: -- Traffic matching criteria in use. -- Update pool which associated the TMC virtual server.

Workaround

Modify the virtual server again. Changing the description field in the GUI or tmsh is sufficient.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips