F5-K37708118: High severity f5 big-ip (dns, ltm enabled with dns services license) vulnerability

Published Feb 1, 2023
·
Updated

When a DNS profile with the Rapid Response Mode setting enabled is configured on a virtual server with hardware SYN cookies enabled, undisclosed requests cause the Traffic Management Microkernel (TMM) to terminate.

Affected Software

5 affected componentsFixes available
F5 BIG-IP (DNS, LTM enabled with DNS Services license3)=17.0.0
17.1.0
F5 BIG-IP (DNS, LTM enabled with DNS Services license3)>=16.1.0<=16.1.3
16.1.3.3
F5 BIG-IP (DNS, LTM enabled with DNS Services license3)>=15.1.0<=15.1.8
15.1.8.1
F5 BIG-IP (DNS, LTM enabled with DNS Services license3)>=14.1.0<=14.1.5
14.1.5.3
F5 BIG-IP (DNS, LTM enabled with DNS Services license3)>=13.1.0<=13.1.5

Event History

Feb 1, 2023
Advisory Published
via F5·01:26 PM
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Frequently Asked Questions

1

What is the severity of F5-K37708118?

F5-K37708118 is classified as a significant vulnerability due to the potential for termination of the Traffic Management Microkernel.

2

What is affected by F5-K37708118?

The vulnerability affects F5 BIG-IP products with DNS and LTM enabled that are configured with hardware SYN cookies and Rapid Response Mode.

3

How do I fix F5-K37708118?

To resolve F5-K37708118, upgrade to the recommended versions: 17.1.0, 16.1.3.3, 15.1.8.1, 14.1.5.3, or perform necessary patches.

4

What causes the F5-K37708118 vulnerability?

The vulnerability is triggered by undisclosed requests to a DNS profile with Rapid Response Mode enabled.

5

What versions of F5 BIG-IP are affected by F5-K37708118?

Affected versions include ranges from 13.1.0 to 13.1.5, 14.1.0 to 14.1.5, 15.1.0 to 15.1.8, 16.1.0 to 16.1.3, and specifically 17.1.0.

Contact

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