CVE intelligence and bounded remediation

CVE-2016-4467 — Apache Qpid Proton security vulnerability

Medium CVSS 5.9

The C client and C-based client bindings in the Apache Qpid Proton library before 0.13.1 on Windows do not properly verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate when using the SChannel-based security layer, which allows man-in-the-middle attackers to spoof servers via an arbitrary valid certificate.

Severity
Medium
CVSS
5.9 (3.0)
Published
2017-05-02
CISA KEV
Not currently listed
Ecosystem
windows/system
Weaknesses
CWE-295

Affected products

  • apache / qpid_proton / 0.8.0
  • apache / qpid_proton / 0.9.0
  • apache / qpid_proton / 0.9.1
  • apache / qpid_proton / 0.10.0
  • apache / qpid_proton / 0.11.0
  • apache / qpid_proton / 0.11.1

Showing 6 representative product identities from 10 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Cryptography, certificate, signature, and channel validation

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

Check exposure

  • Inventory affected algorithms, key uses, trust stores, certificate validation settings, random sources, and plaintext channels across clients and services.
  • Determine which secrets, identities, signatures, or data protections depend on the affected primitive or validation path.
  • Check debug, compatibility, fallback, and hostname or audience override settings in build and runtime configuration.

Remediate safely

  • Use a maintained platform cryptographic API with approved algorithms, modes, parameters, randomness, and full peer identity validation.
  • Remove insecure fallback and validation bypasses; separate keys by purpose and load them from managed secret storage.
  • Plan rotation or reissuance for affected keys, certificates, tokens, hashes, or ciphertext and document compatibility sequencing.

Authoritative sources

Complete CVE record and remediation plan

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