Security advisory

{
  "id": "df0e821d894e9aeba4fefd359363c996209e8512797a2a438b09a553187427e2",
  "url": "https://osv.dev/vulnerability/CVE-2018-17187",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-17187",
    "summary": "The Apache Qpid Proton-J transport includes an optional wrapper layer to perform TLS, enabled by use of the 'transport.ssl(...)' methods. Unless a verification mode was explicitly configured, client and server modes previously defaulted as documented to not verifying a peer certificate, with options to configure this explicitly or select a certificate verification mode with or without hostname verification being performed. The latter hostname verifying mode was not implemented in Apache Qpid Proton-J versions 0.3 to 0.29.0, with attempts to use it resulting in an exception. This left only the option to verify the certificate is trusted, leaving such a client vulnerable to Man In The Middle (MITM) attack. Uses of the Proton-J protocol engine which do not utilise the optional transport TLS wrapper are not impacted, e.g. usage within Qpid JMS. Uses of Proton-J utilising the optional transport TLS wrapper layer that wish to enable hostname verification must be upgraded to version 0.30.0 or later and utilise the VerifyMode#VERIFY_PEER_NAME configuration, which is now the default for client mode usage unless configured otherwise.",
    "evidence": "osv:CVE-2018-17187",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-17187",
      "aliases": [
        "CVE-2018-17187",
        "GHSA-xvch-r4wf-h8w9"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/qpid-proton-j",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5b8f241139962b1c4ef17a37f58ac6636845d1b7"
                },
                {
                  "last_affected": "755e8f67b39c33e36687b8005e868f0d19346140"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:qpid_proton-j:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.3"
                      },
                      {
                        "last_affected": "0.29.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-17187.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:35.525641017Z",
      "provider": "osv",
      "references": [
        "https://issues.apache.org/jira/browse/PROTON-1962",
        "https://mail-archives.apache.org/mod_mbox/qpid-users/201811.mbox/%3CCAFitrpQSV73Vz7rJYfLJK7gvEymZSCR5ooWUeU8j4jzRydk-eg%40mail.gmail.com%3E",
        "https://qpid.apache.org/cves/CVE-2018-17187.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-17187",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 433753,
  "published_at": "2018-11-13T15:29:00.313+00:00"
}