FKIE_CVE-2017-20285

Vulnerability from fkie_nvd - Published: 2026-10-05 07:16 - Updated: 2026-10-05 19:17
Severity
Summary
YAML versions before 1.30 for Perl allow a loaded document to trigger the DESTROY method of arbitrary classes. A perl/hash:Class tag blesses a hash into the class it names. The document supplies the object's fields, and Perl calls DESTROY when it goes out of scope. What DESTROY does depends on the classes the process has loaded. With File::Temp::Dir from core Perl, it can delete a directory tree the document names.
References
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://github.com/ingydotnet/yaml-pm/commit/471314bbdcbd62077eea32755929122aa8bd00a3.patch
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://github.com/ingydotnet/yaml-pm/commit/7736f38bd02e4f9f77d5468721e3be3d7b34a8ec.patch
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://github.com/ingydotnet/yaml-pm/issues/176
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://metacpan.org/release/TINITA/YAML-1.30/changes
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/10/05/8
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "YAML"
          ],
          "packageName": "YAML",
          "packageURL": "pkg:cpan/YAML",
          "programFiles": [
            "lib/YAML.pm",
            "lib/YAML/Loader.pm",
            "lib/YAML/Types.pm"
          ],
          "programRoutines": [
            {
              "name": "YAML::Loader::_parse_explicit"
            },
            {
              "name": "YAML::Type::code::yaml_load"
            },
            {
              "name": "YAML::Type::regexp::yaml_load"
            }
          ],
          "repo": "https://github.com/ingydotnet/yaml-pm",
          "versions": [
            {
              "lessThan": "1.30",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "YAML versions before 1.30 for Perl allow a loaded document to trigger the DESTROY method of arbitrary classes.\n\nA perl/hash:Class tag blesses a hash into the class it names. The document supplies the object\u0027s fields, and Perl calls DESTROY when it goes out of scope.\n\nWhat DESTROY does depends on the classes the process has loaded. With File::Temp::Dir from core Perl, it can delete a directory tree the document names."
    }
  ],
  "id": "CVE-2017-20285",
  "lastModified": "2026-10-05T19:17:10.910",
  "metrics": {},
  "published": "2026-10-05T07:16:29.017",
  "references": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/ingydotnet/yaml-pm/commit/471314bbdcbd62077eea32755929122aa8bd00a3.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/ingydotnet/yaml-pm/commit/7736f38bd02e4f9f77d5468721e3be3d7b34a8ec.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/ingydotnet/yaml-pm/issues/176"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://metacpan.org/release/TINITA/YAML-1.30/changes"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/10/05/8"
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-470"
        },
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    }
  ]
}



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