medium
5.9
CWE
20
Advisory Published
Updated

CVE-2017-6136: Input Validation

First published: Thu Dec 21 2017(Updated: )

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM and WebSafe software version 13.0.0 and 12.0.0 - 12.1.2, undisclosed traffic patterns sent to BIG-IP virtual servers, with the TCP Fast Open and Tail Loss Probe options enabled in the associated TCP profile, may cause a disruption of service to the Traffic Management Microkernel (TMM).

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 Big-ip Local Traffic Manager>=12.1.0<=12.1.2
F5 Big-ip Local Traffic Manager=13.0.0
F5 Big-ip Application Acceleration Manager>=12.1.0<=12.1.2
F5 Big-ip Application Acceleration Manager=13.0.0
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.2
F5 BIG-IP Advanced Firewall Manager=13.0.0
F5 BIG-IP Analytics>=12.1.0<=12.1.2
F5 BIG-IP Analytics=13.0.0
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.2
F5 BIG-IP Access Policy Manager=13.0.0
F5 BIG-IP Application Security Manager>=12.1.0<=12.1.2
F5 BIG-IP Application Security Manager=13.0.0
F5 Big-ip Dns>=12.1.0<=12.1.2
F5 Big-ip Dns=13.0.0
F5 Big-ip Global Traffic Manager>=12.1.0<=12.1.2
F5 Big-ip Global Traffic Manager=13.0.0
F5 Big-ip Link Controller>=12.1.0<=12.1.2
F5 Big-ip Link Controller=13.0.0
F5 Big-ip Policy Enforcement Manager>=12.1.0<=12.1.2
F5 Big-ip Policy Enforcement Manager=13.0.0
F5 Big-ip Websafe>=12.1.0<=12.1.2
F5 Big-ip Websafe=13.0.0

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2017-6136.

  • Which software versions are affected by this vulnerability?

    The vulnerability affects F5 BIG-IP software version 13.0.0 and 12.0.0 - 12.1.2.

  • What is the severity of CVE-2017-6136?

    The severity of CVE-2017-6136 is medium (5.9).

  • What are the potential consequences of this vulnerability?

    Undisclosed traffic patterns sent to BIG-IP virtual servers with specific TCP options enabled may cause a denial-of-service condition.

  • Are there any known fixes for this vulnerability?

    Yes, F5 has released patches and mitigation steps to address this vulnerability. Please refer to the F5 support article for more information.

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