{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2019-3570",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2019-3570",
    "idYear": 2019,
    "status": "PUBLISHED",
    "publishedAt": "2019-07-18T15:42:25.000Z",
    "updatedAt": "2024-08-04T19:12:09.495Z",
    "importedAt": "2026-10-24T01:56:12.831Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": null,
      "summary": "Call to the scrypt_enc() function in HHVM can lead to heap corruption by using specifically crafted parameters (N, r and p). This happens if the parameters are configurable by an attacker for instance by providing the output of scrypt_enc() in a context where Hack/PHP code would attempt to verify it by re-running scrypt_enc() with the same parameters. This could result in information disclosure, memory being overwriten or crashes of the HHVM process. This issue affects versions 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.7.0, 4.8.0, versions 3.30.5 and below, and all versions in the 4.0, 4.1, and 4.2 series.",
      "affected": [
        {
          "vendor": "Facebook",
          "product": "HHVM",
          "versions": [
            {
              "version": "4.8.1",
              "status": "affected"
            },
            {
              "version": "4.8.0",
              "status": "affected"
            },
            {
              "version": "4.7.1",
              "status": "affected"
            },
            {
              "version": "4.7.0",
              "status": "affected"
            },
            {
              "version": "4.6.1",
              "status": "affected"
            },
            {
              "version": "4.6.0",
              "status": "affected"
            },
            {
              "version": "4.5.1",
              "status": "affected"
            },
            {
              "version": "4.5.0",
              "status": "affected"
            },
            {
              "version": "4.4.1",
              "status": "affected"
            },
            {
              "version": "4.4.0",
              "status": "affected"
            },
            {
              "version": "4.3.1",
              "status": "affected"
            },
            {
              "version": "4.0.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "unspecified"
            },
            {
              "version": "3.30.6",
              "status": "affected"
            },
            {
              "version": "unspecified",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "3.30.5"
            }
          ]
        }
      ]
    }
  }
}