gsd-2020-1914
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
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.
Aliases
Aliases
CVE-2020-1914


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-1914",
    "description": "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.",
    "id": "GSD-2020-1914"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-1914"
      ],
      "details": "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.",
      "id": "GSD-2020-1914",
      "modified": "2023-12-13T01:21:57.530831Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "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"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c=0.7.1",
          "affected_versions": "All versions up to 0.7.1",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-670",
            "CWE-78",
            "CWE-937"
          ],
          "date": "2022-06-30",
          "description": "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.",
          "fixed_versions": [
            "0.7.2"
          ],
          "identifier": "CVE-2020-1914",
          "identifiers": [
            "GHSA-327c-qx3v-h673",
            "CVE-2020-1914"
          ],
          "not_impacted": "All versions after 0.7.1",
          "package_slug": "npm/hermes-engine",
          "pubdate": "2022-05-24",
          "solution": "Upgrade to version 0.7.2 or above.",
          "title": "Always-Incorrect Control Flow Implementation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-1914",
            "https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc",
            "https://www.facebook.com/security/advisories/cve-2020-1914",
            "https://github.com/advisories/GHSA-327c-qx3v-h673"
          ],
          "uuid": "ba606200-f352-405d-baad-88b3a41c76f7"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2020-10-01",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve-assign@fb.com",
          "ID": "CVE-2020-1914"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-670"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.facebook.com/security/advisories/cve-2020-1914",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.facebook.com/security/advisories/cve-2020-1914"
            },
            {
              "name": "https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/facebook/hermes/commit/b2021df620824627f5a8c96615edbd1eb7fdddfc"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2020-10-20T18:28Z",
      "publishedDate": "2020-10-08T19:15Z"
    }
  }
}


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