CVE intelligence and bounded remediation

CVE-2017-6159 — F5 Big-Ip Local Traffic Manager security vulnerability

Medium CVSS 5.9

F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM, Websafe software version 12.0.0 to 12.1.2, 11.6.0 to 11.6.1 are vulnerable to a denial of service attack when the MPTCP option is enabled on a virtual server. Data plane is vulnerable when using the MPTCP option of a TCP profile. There is no control plane exposure. An attacker may be able to disrupt services by causing TMM to restart hence temporarily failing to process traffic.

Severity
Medium
CVSS
5.9 (3.0)
Published
2017-10-27
CISA KEV
Not currently listed
Ecosystem
software/application

Affected products

  • f5 / big-ip_local_traffic_manager / 11.6.0
  • f5 / big-ip_local_traffic_manager / 11.6.1
  • f5 / big-ip_local_traffic_manager / 12.0.0
  • f5 / big-ip_local_traffic_manager / 12.1.0
  • f5 / big-ip_local_traffic_manager / 12.1.1
  • f5 / big-ip_local_traffic_manager / 12.1.2

Showing 6 representative product identities from 43 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Resource exhaustion and denial of service

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify attacker-influenced work factors including input size, nesting, compression, fan-out, regex cost, allocation, recursion, retries, and connection lifetime.
  • Map per-request and shared CPU, memory, disk, descriptor, thread, queue, and downstream-service limits.
  • Determine whether authentication, tenancy, quotas, and rate controls apply before expensive processing begins.

Remediate safely

  • Bound input size, nesting, expansion, work, concurrency, queue depth, retries, and execution time before resource-intensive processing.
  • Release resources on every success, error, cancellation, and timeout path and use backpressure instead of unbounded buffering.
  • Update affected components and add small deterministic tests that assert resource ceilings rather than exhausting a host.

Authoritative sources

Complete CVE record and remediation plan

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