CVE-2020-1909 (GCVE-0-2020-1909)

Vulnerability from cvelistv5 – Published: 2020-11-03 19:15 – Updated: 2024-08-04 06:53
VLAI
Summary
A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to v2.20.111 could have resulted in memory corruption, crashes and potentially code execution. This could have happened only if several events occurred together in sequence, including receiving an animated sticker while placing a WhatsApp video call on hold.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
facebook CNA
CNA scorecard – unranked: 0 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
Facebook WhatsApp Business for iOS Affected: 2.20.111
Affected: unspecified , < 2.20.111 (custom)
Affected: 2.20.81 , < unspecified (custom)
guessed Create a notification for this product.
Facebook WhatsApp for iOS Affected: 2.20.111
Affected: unspecified , < 2.20.111 (custom)
Affected: 2.20.81 , < unspecified (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T06:53:59.797Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.whatsapp.com/security/advisories/2020/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "WhatsApp Business for iOS",
          "vendor": "Facebook",
          "versions": [
            {
              "status": "affected",
              "version": "2.20.111"
            },
            {
              "lessThan": "2.20.111",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "unspecified",
              "status": "affected",
              "version": "2.20.81",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "WhatsApp for iOS",
          "vendor": "Facebook",
          "versions": [
            {
              "status": "affected",
              "version": "2.20.111"
            },
            {
              "lessThan": "2.20.111",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "unspecified",
              "status": "affected",
              "version": "2.20.81",
              "versionType": "custom"
            }
          ]
        }
      ],
      "dateAssigned": "2020-11-03T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to v2.20.111 could have resulted in memory corruption, crashes and potentially code execution. This could have happened only if several events occurred together in sequence, including receiving an animated sticker while placing a WhatsApp video call on hold."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416: Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-11-03T19:15:17.000Z",
        "orgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
        "shortName": "facebook"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.whatsapp.com/security/advisories/2020/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve-assign@fb.com",
          "DATE_ASSIGNED": "2020-11-03",
          "ID": "CVE-2020-1909",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "WhatsApp Business for iOS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "!=\u003e",
                            "version_value": "2.20.111"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_value": "2.20.111"
                          },
                          {
                            "version_affected": "\u003e=",
                            "version_value": "2.20.81"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "WhatsApp for iOS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "!=\u003e",
                            "version_value": "2.20.111"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_value": "2.20.111"
                          },
                          {
                            "version_affected": "\u003e=",
                            "version_value": "2.20.81"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Facebook"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to v2.20.111 could have resulted in memory corruption, crashes and potentially code execution. This could have happened only if several events occurred together in sequence, including receiving an animated sticker while placing a WhatsApp video call on hold."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-416: Use After Free"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.whatsapp.com/security/advisories/2020/",
              "refsource": "CONFIRM",
              "url": "https://www.whatsapp.com/security/advisories/2020/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
    "assignerShortName": "facebook",
    "cveId": "CVE-2020-1909",
    "datePublished": "2020-11-03T19:15:17.000Z",
    "dateReserved": "2019-12-02T00:00:00.000Z",
    "dateUpdated": "2024-08-04T06:53:59.797Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-1909",
      "date": "2026-11-10",
      "epss": "0.02283",
      "percentile": "0.83299"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:*",
                    "matchCriteriaId": "94A5904E-1921-4B50-93DD-1D82CBC1DF9B",
                    "versionEndExcluding": "2.20.111",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:*",
                    "matchCriteriaId": "1B569A24-2305-4924-9AB7-2EB6F1B27685",
                    "versionEndExcluding": "2.20.111",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to v2.20.111 could have resulted in memory corruption, crashes and potentially code execution. This could have happened only if several events occurred together in sequence, including receiving an animated sticker while placing a WhatsApp video call on hold."
          },
          {
            "lang": "es",
            "value": "Un uso de la memoria previamente liberada en una biblioteca de registro en WhatsApp para iOS anterior a versi\u00f3n v2.20.111 y WhatsApp Business para iOS anterior a versi\u00f3n v2.20.111, podr\u00eda haber resultado en una corrupci\u00f3n de la memoria, fallos y potencialmente una ejecuci\u00f3n de c\u00f3digo.\u0026#xa0;Esto podr\u00eda haber sucedido solo si varios eventos ocurrieron juntos en secuencia, incluyendo la recepci\u00f3n de una pegatina animada mientras se coloca una videollamada de WhatsApp en espera"
          }
        ],
        "id": "CVE-2020-1909",
        "lastModified": "2024-11-21T05:11:35.573",
        "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": "2020-11-03T20:15:12.470",
        "references": [
          {
            "source": "cve-assign@fb.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.whatsapp.com/security/advisories/2020/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.whatsapp.com/security/advisories/2020/"
          }
        ],
        "sourceIdentifier": "cve-assign@fb.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "cve-assign@fb.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.