cve-2020-1914
Vulnerability from cvelistv5
Published
2020-10-08 18:50
Modified
2024-08-04 06:53
Severity ?
Summary
A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1eb7fdddfc allows attackers to potentially read out of bounds or theoretically execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
References
cve-assign@fb.comhttps://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfcPatch, Third Party Advisory
cve-assign@fb.comhttps://www.facebook.com/security/advisories/cve-2020-1914Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfcPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.facebook.com/security/advisories/cve-2020-1914Vendor Advisory
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T06:53:59.745Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.facebook.com/security/advisories/cve-2020-1914"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Hermes",
          "vendor": "Facebook",
          "versions": [
            {
              "status": "affected",
              "version": "commit prior to b2021df620824627f5a8c96615edbd1eb7fdddfc"
            }
          ]
        }
      ],
      "dateAssigned": "2020-10-08T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1eb7fdddfc allows attackers to potentially read out of bounds or theoretically execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-670",
              "description": "CWE-670: Always-Incorrect Control Flow Implementation, CWE-1119: Excessive Use of Unconditional Branching",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-10-08T18:50:11",
        "orgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
        "shortName": "facebook"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.facebook.com/security/advisories/cve-2020-1914"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve-assign@fb.com",
          "DATE_ASSIGNED": "2020-10-08",
          "ID": "CVE-2020-1914",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Hermes",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "commit prior to b2021df620824627f5a8c96615edbd1eb7fdddfc"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Facebook"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1eb7fdddfc allows attackers to potentially read out of bounds or theoretically execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-670: Always-Incorrect Control Flow Implementation, CWE-1119: Excessive Use of Unconditional Branching"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.facebook.com/security/advisories/cve-2020-1914",
              "refsource": "CONFIRM",
              "url": "https://www.facebook.com/security/advisories/cve-2020-1914"
            },
            {
              "name": "https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc",
              "refsource": "CONFIRM",
              "url": "https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
    "assignerShortName": "facebook",
    "cveId": "CVE-2020-1914",
    "datePublished": "2020-10-08T18:50:11",
    "dateReserved": "2019-12-02T00:00:00",
    "dateUpdated": "2024-08-04T06:53:59.745Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-1914\",\"sourceIdentifier\":\"cve-assign@fb.com\",\"published\":\"2020-10-08T19:15:12.080\",\"lastModified\":\"2024-11-21T05:11:36.147\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1eb7fdddfc allows attackers to potentially read out of bounds or theoretically execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad l\u00f3gica al manejar la instrucci\u00f3n SaveGeneratorLong en Facebook Hermes antes del commit b2021df620824627f5a8c96615edbd1eb7fdddfc, permite a atacantes leer potencialmente fuera de l\u00edmites o, te\u00f3ricamente, ejecutar c\u00f3digo arbitrario por medio de JavaScript dise\u00f1ado.\u0026#xa0;Tome en cuenta que esto solo es explotable si la aplicaci\u00f3n que utiliza Hermes permite una evaluaci\u00f3n de un JavaScript que no es confiable.\u0026#xa0;Por lo tanto, la mayor\u00eda de las aplicaciones React Native no est\u00e1n afectadas\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cve-assign@fb.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-670\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-670\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2020-10-01\",\"matchCriteriaId\":\"0B207EF9-C6DF-4130-9607-BF7D986FE1AA\"}]}]}],\"references\":[{\"url\":\"https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc\",\"source\":\"cve-assign@fb.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.facebook.com/security/advisories/cve-2020-1914\",\"source\":\"cve-assign@fb.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.facebook.com/security/advisories/cve-2020-1914\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.