CVE-2019-6671: High severity f5 access policy manager vulnerability

Published Nov 27, 2019
·
Updated

On BIG-IP 15.0.0-15.0.1, 14.1.0-14.1.2, 14.0.0-14.0.1, and 13.1.0-13.1.3.1, under certain conditions tmm may leak memory when processing packet fragments, leading to resource starvation.

Affected Software

52 affected components
F5 BIG-IP Access Policy Manager>=13.1.0<=13.1.3.1
F5 BIG-IP Access Policy Manager>=14.0.0<=14.0.1
F5 BIG-IP Access Policy Manager>=14.1.0<=14.1.2
F5 BIG-IP Access Policy Manager>=15.0.0<=15.0.1
F5 BIG-IP Advanced Firewall Manager>=13.1.0<=13.1.3.1
F5 BIG-IP Advanced Firewall Manager>=14.0.0<=14.0.1
F5 BIG-IP Advanced Firewall Manager>=14.1.0<=14.1.2
F5 BIG-IP Advanced Firewall Manager>=15.0.0<=15.0.1
F5 BIG-IP Analytics>=13.1.0<=13.1.3.1
F5 BIG-IP Analytics>=14.0.0<=14.0.1
F5 BIG-IP Analytics>=14.1.0<=14.1.2
F5 BIG-IP Analytics>=15.0.0<=15.0.1
F5 Big-ip Application Acceleration Manager>=13.1.0<=13.1.3.1
F5 Big-ip Application Acceleration Manager>=14.0.0<=14.0.1
F5 Big-ip Application Acceleration Manager>=14.1.0<=14.1.2
F5 Big-ip Application Acceleration Manager>=15.0.0<=15.0.1
F5 BIG-IP Application Security Manager>=13.1.0<=13.1.3.1
F5 BIG-IP Application Security Manager>=14.0.0<=14.0.1
F5 BIG-IP Application Security Manager>=14.1.0<=14.1.2
F5 BIG-IP Application Security Manager>=15.0.0<=15.0.1
F5 Big-ip Domain Name System>=13.1.0<=13.1.3.1
F5 Big-ip Domain Name System>=14.0.0<=14.0.1
F5 Big-ip Domain Name System>=14.1.0<=14.1.2
F5 Big-ip Domain Name System>=15.0.0<=15.0.1
F5 BIG-IP Edge Gateway>=13.1.0<=13.1.3.1
F5 BIG-IP Edge Gateway>=14.0.0<=14.0.1
F5 BIG-IP Edge Gateway>=14.1.0<=14.1.2
F5 BIG-IP Edge Gateway>=15.0.0<=15.0.1
F5 Big-ip Fraud Protection Service>=13.1.0<=13.1.3.1
F5 Big-ip Fraud Protection Service>=14.0.0<=14.0.1
F5 Big-ip Fraud Protection Service>=14.1.0<=14.1.2
F5 Big-ip Fraud Protection Service>=15.0.0<=15.0.1
F5 Big-ip Global Traffic Manager>=13.0.0<=13.1.3.1
F5 Big-ip Global Traffic Manager>=14.0.0<=14.0.1
F5 Big-ip Global Traffic Manager>=14.1.0<=14.1.2
F5 Big-ip Global Traffic Manager>=15.0.0<=15.0.1
F5 Big-ip Link Controller>=13.1.0<=13.1.3.1
F5 Big-ip Link Controller>=14.0.0<=14.0.1
F5 Big-ip Link Controller>=14.1.0<=14.1.2
F5 Big-ip Link Controller>=15.0.0<=15.0.1
F5 Big-ip Local Traffic Manager>=13.1.0<=13.1.3.1
F5 Big-ip Local Traffic Manager>=14.0.0<=14.0.1
F5 Big-ip Local Traffic Manager>=14.1.0<=14.1.2
F5 Big-ip Local Traffic Manager>=15.0.0<=15.0.1
F5 Big-ip Policy Enforcement Manager>=13.1.0<=13.1.3.1
F5 Big-ip Policy Enforcement Manager>=14.0.0<=14.0.1
F5 Big-ip Policy Enforcement Manager>=14.1.0<=14.1.2
F5 Big-ip Policy Enforcement Manager>=15.0.0<=15.0.1
F5 Big-ip Webaccelerator>=13.1.0<=13.1.3.1
F5 Big-ip Webaccelerator>=14.0.0<=14.0.1
F5 Big-ip Webaccelerator>=14.1.0<=14.1.2
F5 Big-ip Webaccelerator>=15.0.0<=15.0.1

Event History

Nov 27, 2019
CVE Published
via MITRE·09:41 PM
Data Sourced
via MITRE·09:41 PM
DescriptionWeakness

Frequently Asked Questions

1

What is the severity of CVE-2019-6671?

CVE-2019-6671 is considered a medium severity vulnerability due to the potential for resource starvation caused by memory leakage in affected BIG-IP versions.

2

How do I fix CVE-2019-6671?

To fix CVE-2019-6671, it is recommended to upgrade to a version of BIG-IP that is not affected, specifically versions later than 15.0.1, 14.1.2, 14.0.1, or 13.1.3.1.

3

Which versions of F5 BIG-IP are affected by CVE-2019-6671?

CVE-2019-6671 affects F5 BIG-IP versions 15.0.0 to 15.0.1, 14.1.0 to 14.1.2, 14.0.0 to 14.0.1, and 13.1.0 to 13.1.3.1.

4

What are potential consequences of CVE-2019-6671 exploitation?

Exploitation of CVE-2019-6671 can lead to resource starvation, impacting the performance and availability of services managed by affected BIG-IP devices.

5

Is there a workaround for CVE-2019-6671?

Currently, the most effective mitigation for CVE-2019-6671 is to upgrade to a non-vulnerable version of the F5 BIG-IP software.

Contact

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