high
7.5
CWE
400
Advisory Published
Updated

CVE-2019-6683

First published: Mon Dec 23 2019(Updated: )

On versions 15.0.0-15.0.1.1, 14.1.0-14.1.2.2, 14.0.0-14.0.1, 13.1.0-13.1.3.2, 12.1.0-12.1.5, and 11.5.2-11.6.5.1, BIG-IP virtual servers with Loose Initiation enabled on a FastL4 profile may be subject to excessive flow usage under undisclosed conditions.

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 Access Policy Manager>=11.5.2<=11.6.5
F5 Access Policy Manager>=12.1.0<=12.1.5
F5 Access Policy Manager>=13.1.0<=13.1.3
F5 Access Policy Manager>=14.0.0<14.0.1.1
F5 Access Policy Manager>=14.1.0<14.1.2.3
F5 Access Policy Manager>=15.0.0<15.1.0
F5 BIG-IP Advanced Firewall Manager>=11.5.2<=11.6.5
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.5
F5 BIG-IP Advanced Firewall Manager>=13.1.0<=13.1.3
F5 BIG-IP Advanced Firewall Manager>=14.0.0<14.0.1.1
F5 BIG-IP Advanced Firewall Manager>=14.1.0<14.1.2.3
F5 BIG-IP Advanced Firewall Manager>=15.0.0<15.1.0
F5 BIG-IP Analytics>=11.5.2<=11.6.5
F5 BIG-IP Analytics>=12.1.0<=12.1.5
F5 BIG-IP Analytics>=13.1.0<=13.1.3
F5 BIG-IP Analytics>=14.0.0<14.0.1.1
F5 BIG-IP Analytics>=14.1.0<14.1.2.3
F5 BIG-IP Analytics>=15.0.0<15.1.0
F5 BIG-IP Application Acceleration Manager>=11.5.2<=11.6.5
F5 BIG-IP Application Acceleration Manager>=12.1.0<=12.1.5
F5 BIG-IP Application Acceleration Manager>=13.1.0<=13.1.3
F5 BIG-IP Application Acceleration Manager>=14.0.0<14.0.1.1
F5 BIG-IP Application Acceleration Manager>=14.1.0<14.1.2.3
F5 BIG-IP Application Acceleration Manager>=15.0.0<15.1.0
F5 Application Security Manager>=11.5.2<=11.6.5
F5 Application Security Manager>=12.1.0<=12.1.5
F5 Application Security Manager>=13.1.0<=13.1.3
F5 Application Security Manager>=14.0.0<14.0.1.1
F5 Application Security Manager>=14.1.0<14.1.2.3
F5 Application Security Manager>=15.0.0<15.1.0
F5 BIG-IP>=11.5.2<=11.6.5
F5 BIG-IP>=12.1.0<=12.1.5
F5 BIG-IP>=13.1.0<=13.1.3
F5 BIG-IP>=14.0.0<14.0.1.1
F5 BIG-IP>=14.1.0<14.1.2.3
F5 BIG-IP>=15.0.0<15.1.0
F5 BIG-IP Edge Gateway>=11.5.2<=11.6.5
F5 BIG-IP Edge Gateway>=12.1.0<=12.1.5
F5 BIG-IP Edge Gateway>=13.1.0<=13.1.3
F5 BIG-IP Edge Gateway>=14.0.0<14.0.1.1
F5 BIG-IP Edge Gateway>=14.1.0<14.1.2.3
F5 BIG-IP Edge Gateway>=15.0.0<15.1.0
F5 BIG-IP Fraud Protection Service>=11.5.2<=11.6.5
F5 BIG-IP Fraud Protection Service>=12.1.0<=12.1.5
F5 BIG-IP Fraud Protection Service>=13.1.0<=13.1.3
F5 BIG-IP Fraud Protection Service>=14.0.0<14.0.1.1
F5 BIG-IP Fraud Protection Service>=14.1.0<14.1.2.3
F5 BIG-IP Fraud Protection Service>=15.0.0<15.1.0
Riverbed SteelApp Traffic Manager>=11.5.2<=11.6.5
Riverbed SteelApp Traffic Manager>=12.1.0<=12.1.5
Riverbed SteelApp Traffic Manager>=13.1.0<=13.1.3
Riverbed SteelApp Traffic Manager>=14.0.0<14.0.1.1
Riverbed SteelApp Traffic Manager>=14.1.0<14.1.2.3
Riverbed SteelApp Traffic Manager>=15.0.0<15.1.0
F5 BIG-IP Link Controller>=11.5.2<=11.6.5
F5 BIG-IP Link Controller>=12.1.0<=12.1.5
F5 BIG-IP Link Controller>=13.1.0<=13.1.3
F5 BIG-IP Link Controller>=14.0.0<14.0.1.1
F5 BIG-IP Link Controller>=14.1.0<14.1.2.3
F5 BIG-IP Link Controller>=15.0.0<15.1.0
Riverbed SteelApp Traffic Manager>=11.5.2<=11.6.5
Riverbed SteelApp Traffic Manager>=12.1.0<=12.1.5
Riverbed SteelApp Traffic Manager>=13.1.0<=13.1.3
Riverbed SteelApp Traffic Manager>=14.0.0<14.0.1.1
Riverbed SteelApp Traffic Manager>=14.1.0<14.1.2.3
Riverbed SteelApp Traffic Manager>=15.0.0<15.1.0
F5 BIG-IP Policy Enforcement Manager>=11.5.2<=11.6.5
F5 BIG-IP Policy Enforcement Manager>=12.1.0<=12.1.5
F5 BIG-IP Policy Enforcement Manager>=13.1.0<=13.1.3
F5 BIG-IP Policy Enforcement Manager>=14.0.0<14.0.1.1
F5 BIG-IP Policy Enforcement Manager>=14.1.0<14.1.2.3
F5 BIG-IP Policy Enforcement Manager>=15.0.0<15.1.0
F5 BIG-IP WebAccelerator>=11.5.2<=11.6.5
F5 BIG-IP WebAccelerator>=12.1.0<=12.1.5
F5 BIG-IP WebAccelerator>=13.1.0<=13.1.3
F5 BIG-IP WebAccelerator>=14.0.0<14.0.1.1
F5 BIG-IP WebAccelerator>=14.1.0<14.1.2.3
F5 BIG-IP WebAccelerator>=15.0.0<15.1.0

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2019-6683?

    CVE-2019-6683 is classified as a medium severity vulnerability due to its potential to cause excessive flow usage.

  • What versions are affected by CVE-2019-6683?

    CVE-2019-6683 affects F5 BIG-IP versions 11.5.2 through 15.0.1.1 across various profiles.

  • How do I fix CVE-2019-6683?

    To fix CVE-2019-6683, update your F5 BIG-IP deployment to a version later than 15.0.1.1 or apply any available patches.

  • What are the implications of CVE-2019-6683 for F5 BIG-IP users?

    CVE-2019-6683 may lead to performance degradation due to excessive flow usage, potentially impacting service availability.

  • Is there a workaround for CVE-2019-6683?

    Disabling Loose Initiation on affected profiles can serve as a temporary workaround for CVE-2019-6683 until a patch is applied.

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