high
7.5
Advisory Published
Updated

CVE-2019-6619

First published: Fri May 03 2019(Updated: )

On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, the Traffic Management Microkernel (TMM) may restart when a virtual server has an HTTP/2 profile with Application Layer Protocol Negotiation (ALPN) enabled and it processes traffic where the ALPN extension size is zero.

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 Access Policy Manager>=12.1.0<12.1.4.1
F5 Access Policy Manager>=13.0.0<13.1.1.5
F5 Access Policy Manager>=14.0.0<14.1.0.2
F5 BIG-IP Advanced Firewall Manager>=12.1.0<12.1.4.1
F5 BIG-IP Advanced Firewall Manager>=13.0.0<13.1.1.5
F5 BIG-IP Advanced Firewall Manager>=14.0.0<14.1.0.2
F5 BIG-IP Application Acceleration Manager>=12.1.0<12.1.4.1
F5 BIG-IP Application Acceleration Manager>=13.0.0<13.1.1.5
F5 BIG-IP Application Acceleration Manager>=14.0.0<14.1.0.2
F5 BIG-IP Link Controller>=12.1.0<12.1.4.1
F5 BIG-IP Link Controller>=13.0.0<13.1.1.5
F5 BIG-IP Link Controller>=14.0.0<14.1.0.2
F5 BIG-IP Policy Enforcement Manager>=12.1.0<12.1.4.1
F5 BIG-IP Policy Enforcement Manager>=13.0.0<13.1.1.5
F5 BIG-IP Policy Enforcement Manager>=14.0.0<14.1.0.2
F5 BIG-IP WebAccelerator>=12.1.0<12.1.4.1
F5 BIG-IP WebAccelerator>=13.0.0<13.1.1.5
F5 BIG-IP WebAccelerator>=14.0.0<14.1.0.2
F5 Application Security Manager>=12.1.0<12.1.4.1
F5 Application Security Manager>=13.0.0<13.1.1.5
F5 Application Security Manager>=14.0.0<14.1.0.2
Riverbed SteelApp Traffic Manager>=12.1.0<12.1.4.1
Riverbed SteelApp Traffic Manager>=13.0.0<13.1.1.5
Riverbed SteelApp Traffic Manager>=14.0.0<14.1.0.2

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2019-6619?

    CVE-2019-6619 has a medium severity rating due to the potential for impacting the availability of the affected systems if exploited.

  • How do I fix CVE-2019-6619?

    To mitigate CVE-2019-6619, you should upgrade your F5 BIG-IP systems to the latest versions above the specified vulnerable versions.

  • Which software versions are affected by CVE-2019-6619?

    CVE-2019-6619 affects F5 BIG-IP versions 14.0.0 to 14.1.0.1, 13.0.0 to 13.1.1.4, and 12.1.0 to 12.1.4.

  • What could an attacker accomplish by exploiting CVE-2019-6619?

    An attacker could potentially restart the Traffic Management Microkernel, leading to service interruptions.

  • Is there any workaround for CVE-2019-6619?

    The primary recommendation for CVE-2019-6619 is to upgrade to a non-vulnerable version, as there are no effective workarounds.

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