CVE intelligence and bounded remediation

CVE-2017-0303 — F5 Big-Ip Local Traffic Manager security vulnerability

High CVSS 7.5

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM and Websafe software version 13.0.0, 12.0.0 to 12.1.2 and 11.5.1 to 11.6.1, under limited circumstances connections handled by a Virtual Server with an associated SOCKS profile may not be properly cleaned up, potentially leading to resource starvation. Connections may be left in the connection table which then can only be removed by restarting TMM. Over time this may lead to the BIG-IP being unable to process further connections.

Severity
High
CVSS
7.5 (3.0)
Published
2017-10-27
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-459

Affected products

  • f5 / big-ip_local_traffic_manager / 11.5.0
  • f5 / big-ip_local_traffic_manager / 11.5.1
  • f5 / big-ip_local_traffic_manager / 11.5.2
  • f5 / big-ip_local_traffic_manager / 11.5.3
  • f5 / big-ip_local_traffic_manager / 11.5.4
  • f5 / big-ip_local_traffic_manager / 11.5.5

Showing 6 representative product identities from 92 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

General vulnerability remediation

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

Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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