{
  "schema_version": "1.3.1",
  "id": "GO-2021-0061",
  "modified": "0001-01-01T00:00:00Z",
  "published": "2021-04-14T20:04:52Z",
  "aliases": [
    "CVE-2021-4235",
    "GHSA-r88r-gmrh-7j83"
  ],
  "summary": "Denial of service in gopkg.in/yaml.v2",
  "details": "Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector.",
  "affected": [
    {
      "package": {
        "name": "gopkg.in/yaml.v2",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.3"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "gopkg.in/yaml.v2",
            "symbols": [
              "Decoder.Decode",
              "Unmarshal",
              "UnmarshalStrict",
              "decoder.unmarshal"
            ]
          }
        ]
      }
    },
    {
      "package": {
        "name": "github.com/go-yaml/yaml",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "github.com/go-yaml/yaml",
            "symbols": [
              "Decoder.Decode",
              "Unmarshal",
              "UnmarshalStrict",
              "decoder.unmarshal"
            ]
          }
        ]
      }
    }
  ],
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/go-yaml/yaml/pull/375"
    },
    {
      "type": "FIX",
      "url": "https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241"
    }
  ],
  "credits": [
    {
      "name": "@simonferquel"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2021-0061",
    "review_status": "REVIEWED"
  }
}