Security advisory

{
  "id": "4ab66f79f1bb4b995ead7f0148eb5ef6d6af11cf4d0c5e446fe87d6d4b0d5f0c",
  "url": "https://osv.dev/vulnerability/CVE-2020-14163",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-14163",
    "summary": "An issue was discovered in ecma/operations/ecma-container-object.c in JerryScript 2.2.0. Operations with key/value pairs did not consider the case where garbage collection is triggered after the key operation but before the value operation, as demonstrated by improper read access to memory in ecma_gc_set_object_visited in ecma/base/ecma-gc.c.",
    "evidence": "osv:CVE-2020-14163",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-14163",
      "aliases": [
        "CVE-2020-14163"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jerryscript-project/jerryscript",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5fdeb7c1d68e8c5209e186e1760bc703a723d588"
                },
                {
                  "last_affected": "5fdeb7c1d68e8c5209e186e1760bc703a723d588"
                },
                {
                  "fixed": "c2b662170245a16f46ce02eae68815c325d99821"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jerryscript:jerryscript:2.2.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.2.0"
                      },
                      {
                        "last_affected": "2.2.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c2b662170245a16f46ce02eae68815c325d99821"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.2.0",
            "v2.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14163.json",
            "vanir_signatures": [
              {
                "id": "CVE-2020-14163-ba7c1e0a",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "25465514740708979420224665403034416635",
                    "320576600380106644655582760555613389848",
                    "244450852550685865976403244806254405722",
                    "7204265613907957485970655669963212200",
                    "210264926459118391535518939351240118780",
                    "187499556459470564402424983597308093757",
                    "110179250577828944811860284723004611515"
                  ]
                },
                "source": "https://github.com/jerryscript-project/jerryscript/commit/c2b662170245a16f46ce02eae68815c325d99821",
                "target": {
                  "file": "jerry-core/ecma/operations/ecma-container-object.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2020-14163-cd4be752",
                "digest": {
                  "length": 328,
                  "function_hash": "45735897783713569161299970595128115998"
                },
                "source": "https://github.com/jerryscript-project/jerryscript/commit/c2b662170245a16f46ce02eae68815c325d99821",
                "target": {
                  "file": "jerry-core/ecma/operations/ecma-container-object.c",
                  "function": "ecma_op_internal_buffer_append"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:51:14Z"
          }
        }
      ],
      "modified": "2026-10-20T13:51:14.522989485Z",
      "provider": "osv",
      "references": [
        "https://github.com/jerryscript-project/jerryscript/issues/3804",
        "https://github.com/jerryscript-project/jerryscript/commit/c2b662170245a16f46ce02eae68815c325d99821"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-14163",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388276,
  "published_at": "2020-06-15T21:15:10.553+00:00"
}