{
  "schema_version": "1.3.1",
  "id": "GO-2020-0036",
  "modified": "0001-01-01T00:00:00Z",
  "published": "2021-04-14T20:04:52Z",
  "aliases": [
    "CVE-2019-11254",
    "GHSA-wxc4-f4m6-wwqv"
  ],
  "summary": "Excessive resource consumption in YAML parsing in gopkg.in/yaml.v2",
  "details": "Due to unbounded aliasing, a crafted YAML file can cause consumption of significant system resources. If parsing user supplied 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": "2.2.8"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "gopkg.in/yaml.v2",
            "symbols": [
              "Decoder.Decode",
              "Unmarshal",
              "UnmarshalStrict",
              "yaml_parser_decrease_flow_level",
              "yaml_parser_fetch_more_tokens",
              "yaml_parser_fetch_stream_start",
              "yaml_parser_fetch_value",
              "yaml_parser_remove_simple_key",
              "yaml_parser_save_simple_key"
            ]
          }
        ]
      }
    },
    {
      "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",
              "yaml_parser_decrease_flow_level",
              "yaml_parser_fetch_more_tokens",
              "yaml_parser_fetch_stream_start",
              "yaml_parser_fetch_value",
              "yaml_parser_remove_simple_key",
              "yaml_parser_save_simple_key"
            ]
          }
        ]
      }
    }
  ],
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/go-yaml/yaml/pull/555"
    },
    {
      "type": "FIX",
      "url": "https://github.com/go-yaml/yaml/commit/53403b58ad1b561927d19068c655246f2db79d48"
    },
    {
      "type": "WEB",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18496"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2020-0036"
  }
}