Security advisory

{
  "id": "5f8320078cc5e4fab3791261916005f3c00cfb36e63d3f76d77d0e09cbbc8a15",
  "url": "https://osv.dev/vulnerability/CVE-2022-2576",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-2576",
    "summary": "In Eclipse Californium version 2.0.0 to 2.7.2 and 3.0.0-3.5.0 a DTLS resumption handshake falls back to a DTLS full handshake on a parameter mismatch without using a HelloVerifyRequest. Especially, if used with certificate based cipher suites, that results in message amplification (DDoS other peers) and high CPU load (DoS own peer). The misbehavior occurs only with DTLS_VERIFY_PEERS_ON_RESUMPTION_THRESHOLD values larger than 0.",
    "evidence": "osv:CVE-2022-2576",
    "products": [],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-2576",
      "aliases": [
        "CVE-2022-2576",
        "GHSA-qq3j-44gw-cf6r"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/eclipse-californium/californium",
              "type": "GIT",
              "events": [
                {
                  "introduced": "15a27a972d7b4dd8d28d717cedfd01e6bf860e38"
                },
                {
                  "last_affected": "7eacd991054cff2cf741b6bf44c06bbe7b2d4c91"
                },
                {
                  "introduced": "bb400ca2b6eeffa4a1d1ec3005a7391625c4ee20"
                },
                {
                  "last_affected": "7ba3019079dcfb3484eeda7a23c5ede1b63ab48c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0.0"
                      },
                      {
                        "last_affected": "2.7.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "last_affected": "3.5.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.5.0",
            "2.7.2",
            "3.4.0",
            "2.7.1",
            "3.3.0",
            "3.2.0",
            "3.1.0",
            "2.7.0",
            "2.6.6",
            "3.0.0",
            "2.6.5",
            "2.6.4",
            "2.6.3",
            "2.6.2",
            "2.6.1",
            "2.6.0",
            "2.5.0",
            "2.4.0",
            "2.3.0",
            "2.3.0-RC2",
            "2.3.0-RC1",
            "2.2.0",
            "2.2.0-RC1",
            "2.1.0",
            "2.1.0-RC2",
            "2.1.0-RC1",
            "2.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-2576.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.666075296Z",
      "provider": "osv",
      "references": [
        "https://bugs.eclipse.org/580018",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2576.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-2576"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-408"
        ],
        "cna_assigner": "eclipse",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "2.0.0"
                  },
                  {
                    "last_affected": "2.7.2"
                  },
                  {
                    "introduced": "3.0.0"
                  },
                  {
                    "last_affected": "3.5.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "SplitRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2576.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-2576",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 507280,
  "published_at": "2022-07-29T13:20:10+00:00"
}