CVE-2017-6163

Severity: medium (CVSS 5.9 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-10-27 · updated 2026-06-17
Weakness: CWE-119

Description

In F5 BIG-IP LTM, AAM, AFM, APM, ASM, Link Controller, PEM, PSM software version 12.0.0 to 12.1.2, 11.6.0 to 11.6.1, 11.4.0 to 11.5.4, when a virtual server uses the standard configuration of HTTP/2 or SPDY profile with Client SSL profile, and the client initiates a number of concurrent streams beyond the advertised limit can cause a disruption of service. Remote client initiating stream beyond the advertised limit can cause a disruption of service. The Traffic Management Microkernel (TMM) data plane is exposed to this issue; the control plane is not exposed.

Affected products

F5 BIG-IP APM: from 11.5.0 through 11.5.4; 11.6.0, 11.6.1, 12.0.0, 12.1.0, 12.1.1, 12.1.2
BIG-IP: from 11.4.0 through 11.5.4; 11.6.0, 11.6.1, 12.0.0, 12.1.0, 12.1.1, 12.1.2
F5 Networks, Inc. BIG-IP (AAM): from 11.4.0 through 11.5.4; 11.6.0, 11.6.1, 12.0.0, 12.1.0, 12.1.1, 12.1.2
BIG-IP ASM: from 11.5.0 through 11.5.4; 11.6.0, 11.6.1, 12.0.0, 12.1.0, 12.1.1, 12.1.2
F5 Big-Ip Link Controller: from 11.5.0 through 11.5.4; 11.6.0, 11.6.1, 12.0.0, 12.1.0, 12.1.1, 12.1.2
F5 BIG-IP (LTM): from 11.4.0 through 11.5.3; 11.6.0, 11.6.1, 12.0.0, 12.1.0, 12.1.1, 12.1.2
F5 Networks, Inc. BIG-IP (PEM): from 11.5.0 through 11.5.4; 11.6.0, 11.6.1, 12.0.0, 12.1.0, 12.1.1, 12.1.2
F5 Big-Ip Protocol Security Module: from 11.4.0 (excl.) through 11.5.4; 11.6.0, 11.6.1, 12.0.0, 12.1.0, 12.1.1, 12.1.2

References

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