Security advisory

{
  "id": "72699d9d683f1ca57ecd9f0a1d2fc7713b5d0cb7dac4ce3c567456d82abcd52c",
  "url": "https://osv.dev/vulnerability/CVE-2020-27217",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-27217",
    "summary": "In Eclipse Hono version 1.3.0 and 1.4.0 the AMQP protocol adapter does not verify the size of AMQP messages received from devices. In particular, a device may send messages that are bigger than the max-message-size that the protocol adapter has indicated during link establishment. While the AMQP 1.0 protocol explicitly disallows a peer to send such messages, a hand crafted AMQP 1.0 client could exploit this behavior in order to send a message of unlimited size to the adapter, eventually causing the adapter to fail with an out of memory exception.",
    "evidence": "osv:CVE-2020-27217",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-27217",
      "aliases": [
        "CVE-2020-27217",
        "GHSA-9f52-hpvw-v96w"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/eclipse-hono/hono",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4026e3b5e28e381064ccfb3679f012729c3d5e1d"
                },
                {
                  "last_affected": "2f415ce12c92c23aac42ac92d4652550e0b7f252"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:eclipse:hono:1.3.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.3.0"
                      },
                      {
                        "last_affected": "1.3.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:eclipse:hono:1.4.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.4.0"
                      },
                      {
                        "last_affected": "1.4.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.3.0",
            "1.4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27217.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:44.193142020Z",
      "provider": "osv",
      "references": [
        "https://bugs.eclipse.org/bugs/show_bug.cgi?id=567068"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-27217",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435804,
  "published_at": "2020-11-13T20:15:16.27+00:00"
}