Use-of-uninitialized-value in Poco::Dynamic::Var::~Var

{
  "id": "267b01307635d327f21680778b3528452be4b1c2003dac0333cc1ab8dbbb47fa",
  "url": "https://osv.dev/vulnerability/OSV-2024-1071",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Use-of-uninitialized-value in Poco::Dynamic::Var::~Var",
    "summary": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42538385 ``` Crash type: Use-of-uninitialized-value Crash state: Poco::Dynamic::Var::~Var void Poco::JSON::Object::doStringify",
    "evidence": "osv:OSV-2024-1071",
    "products": [
      {
        "name": {
          "value": "poco",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "poco-1.14.0-release",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "OSV-2024-1071",
      "aliases": [
        "OSV-2024-1071"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pocoproject/poco",
              "type": "GIT",
              "events": [
                {
                  "introduced": "91c256095f846cd92591e070d4dc075d2a7f7aa9"
                },
                {
                  "fixed": "bd7be38d6fe7eff50e65223ffe39fb2cbac1c521"
                },
                {
                  "fixed": "af36c9badfcd8971f7a6cf68f1cb759751694673"
                },
                {
                  "fixed": "5652837b8f622f2e8d6aad5d286c78587a4a37b4"
                },
                {
                  "fixed": "b9abe9823dbe6d3ba81d7d29bf157526302c95c8"
                },
                {
                  "fixed": "0cc3ab4d13cda36b5c75acaf99bd9599424be4d8"
                }
              ]
            }
          ],
          "package": {
            "name": "poco",
            "purl": "pkg:generic/poco",
            "ecosystem": "OSS-Fuzz"
          },
          "versions": [
            "poco-1.14.0-release"
          ],
          "database_specific": {
            "source": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/poco/OSV-2024-1071.yaml",
            "fixed_range": "4ca735d7d80f717911b94a246536b2f04272753e:5652837b8f622f2e8d6aad5d286c78587a4a37b4"
          },
          "ecosystem_specific": {
            "severity": "MEDIUM"
          }
        }
      ],
      "modified": "2026-10-20T17:25:19.977862825Z",
      "provider": "osv",
      "references": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42538385"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 389862,
  "published_at": "2024-09-15T00:06:58.342742+00:00"
}