Security advisory

{
  "id": "38160907ea2b22c5412dbd83ce536692c09ba7deb28be3c40aafea10cadceb11",
  "url": "https://osv.dev/vulnerability/CVE-2022-33070",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-33070",
    "summary": "Protobuf-c v1.4.0 was discovered to contain an invalid arithmetic shift via the function parse_tag_and_wiretype in protobuf-c/protobuf-c.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via unspecified vectors.",
    "evidence": "osv:CVE-2022-33070",
    "products": [],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-33070",
      "aliases": [
        "CVE-2022-33070"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/protobuf-c/protobuf-c",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f224ab2eeb648a818eb20687d7150a285442c907"
                },
                {
                  "last_affected": "f224ab2eeb648a818eb20687d7150a285442c907"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:protobuf-c_project:protobuf-c:1.4.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.4.0"
                      },
                      {
                        "last_affected": "1.4.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.4.0",
            "v1.4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-33070.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:40.485101144Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/33xxx/CVE-2022-33070.json",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFN2GHUEGTSHRD7J5PKQ5DRSJSEQ2IKN/",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-33070",
        "https://github.com/protobuf-c/protobuf-c/issues/506",
        "https://github.com/protobuf-c/protobuf-c/pull/508"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/33xxx/CVE-2022-33070.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-33070",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 507910,
  "published_at": "2022-06-22T13:24:44+00:00"
}