Security advisory

{
  "id": "390af9c2a7790efdbd59470b582c75a1332567edb7d6aec9c7236427c86f21a6",
  "url": "https://osv.dev/vulnerability/CVE-2022-46393",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-46393",
    "summary": "An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. There is a potential heap-based buffer overflow and heap-based buffer over-read in DTLS if MBEDTLS_SSL_DTLS_CONNECTION_ID is enabled and MBEDTLS_SSL_CID_IN_LEN_MAX > 2 * MBEDTLS_SSL_CID_OUT_LEN_MAX.",
    "evidence": "osv:CVE-2022-46393",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2022-46393",
      "aliases": [
        "CVE-2022-46393"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mbed-tls/mbedtls",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8df2f8e7b9c7bb9390ac74bb7bace27edca81a2b"
                },
                {
                  "fixed": "8c89224991adff88d53cd380f42a2baa36f91454"
                },
                {
                  "fixed": "89f040a5c938985c5f30728baed21e49d0846a53"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "fixed": "3.3.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "89f040a5c938985c5f30728baed21e49d0846a53"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.28.2"
                  },
                  {
                    "range": [
                      {
                        "fixed": "8c89224991adff88d53cd380f42a2baa36f91454"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v3.3.0"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-46393.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.254731496Z",
      "provider": "osv",
      "references": [
        "https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2",
        "https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/46xxx/CVE-2022-46393.json",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BR7ZCVKLPGCOEEALUHZMFHXQHR6S4QL/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XMKJ5IMJEPXYAHHU56Z4P2FSYIEAESB/",
        "https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-46393"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/46xxx/CVE-2022-46393.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-46393",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 506833,
  "published_at": "2022-12-15T00:00:00+00:00"
}