FKIE_CVE-2018-20655

Vulnerability from fkie_nvd - Published: 2019-06-14 17:29 - Updated: 2025-09-03 17:36
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
When receiving calls using WhatsApp for iOS, a missing size check when parsing a sender-provided packet allowed for a stack-based overflow. This issue affects WhatsApp for iOS prior to v2.18.90.24 and WhatsApp Business for iOS prior to v2.18.90.24.
References
cve-assign@fb.comhttp://www.securityfocus.com/bid/108805Third Party Advisory, VDB Entry
cve-assign@fb.comhttps://www.facebook.com/security/advisories/cve-2018-20655/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/108805Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://www.facebook.com/security/advisories/cve-2018-20655/Third Party Advisory
Impacted products
Vendor Product Version
whatsapp whatsapp *
whatsapp whatsapp_business *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:*",
              "matchCriteriaId": "33D5A648-8238-4037-8276-00CB8FA95E80",
              "versionEndExcluding": "2.18.90.24",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:*",
              "matchCriteriaId": "5022E01B-85D5-45E5-93DE-BD1DC04D2528",
              "versionEndExcluding": "2.18.90.24",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "When receiving calls using WhatsApp for iOS, a missing size check when parsing a sender-provided packet allowed for a stack-based overflow. This issue affects WhatsApp for iOS prior to v2.18.90.24 and WhatsApp Business for iOS prior to v2.18.90.24."
    },
    {
      "lang": "es",
      "value": "Cuando se reciben llamadas con WhatsApp para iOS, una falta de comprobaci\u00f3n de tama\u00f1o al analizar un paquete proporcionado por el remitente permite un desbordamiento basado en la pila. Este problema afecta a WhatsApp para iOS anterior a versi\u00f3n v2.18.90.24 y WhatsApp Business para iOS anterior a versi\u00f3n v2.18.90.24."
    }
  ],
  "id": "CVE-2018-20655",
  "lastModified": "2025-09-03T17:36:53.303",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-06-14T17:29:01.050",
  "references": [
    {
      "source": "cve-assign@fb.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/108805"
    },
    {
      "source": "cve-assign@fb.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.facebook.com/security/advisories/cve-2018-20655/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "VDB Entry"
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      "url": "http://www.securityfocus.com/bid/108805"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://www.facebook.com/security/advisories/cve-2018-20655/"
    }
  ],
  "sourceIdentifier": "cve-assign@fb.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ],
      "source": "cve-assign@fb.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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