CVE-2021-24042 (GCVE-0-2021-24042)

Vulnerability from cvelistv5 – Published: 2022-01-04 18:55 – Updated: 2025-05-22 18:36
VLAI?
Summary
The calling logic for WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23, WhatsApp for iOS prior to v2.21.230, WhatsApp Business for iOS prior to v2.21.230, WhatsApp for KaiOS prior to v2.2143, WhatsApp Desktop prior to v2.2146 could have allowed an out-of-bounds write if a user makes a 1:1 call to a malicious actor.
Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-122 - Heap-based Buffer Overflow (CWE-122)
Assigner
References
Impacted products
Vendor Product Version
Facebook WhatsApp Desktop Affected: unspecified , < v2.2146 (custom)
Unaffected: v2.2146 , < unspecified (custom)
Create a notification for this product.
    Facebook WhatsApp for KaiOS Affected: unspecified , < v2.2143 (custom)
Unaffected: v2.2143 , < unspecified (custom)
Create a notification for this product.
    Facebook WhatsApp Business for iOS Affected: unspecified , < v2.21.230 (custom)
Unaffected: v2.21.230 , < unspecified (custom)
Create a notification for this product.
    Facebook WhatsApp for iOS Affected: unspecified , < v2.21.230 (custom)
Unaffected: v2.21.230 , < unspecified (custom)
Create a notification for this product.
    Facebook WhatsApp Business for Android Affected: unspecified , < v2.21.23 (custom)
Unaffected: v2.21.23 , < unspecified (custom)
Create a notification for this product.
    Facebook WhatsApp for Android Affected: unspecified , < v2.21.23 (custom)
Unaffected: v2.21.23 , < unspecified (custom)
Create a notification for this product.
Show details on NVD website
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{\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"Heap-based Buffer Overflow (CWE-122)\"}]}]}, \"references\": {\"reference_data\": [{\"name\": \"https://www.whatsapp.com/security/advisories/2021/\", \"refsource\": \"CONFIRM\", \"url\": \"https://www.whatsapp.com/security/advisories/2021/\"}]}}}, \"adp\": [{\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T19:21:17.296Z\"}, \"title\": \"CVE Program Container\", \"references\": [{\"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"], \"url\": \"https://www.whatsapp.com/security/advisories/2021/\"}]}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-24042\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-05-22T17:29:44.436259Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-787\", \"description\": \"CWE-787 Out-of-bounds Write\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-05-22T17:30:56.189Z\"}}]}",
      "cveMetadata": "{\"assignerOrgId\": \"4fc57720-52fe-4431-a0fb-3d2c8747b827\", \"assignerShortName\": \"facebook\", \"cveId\": \"CVE-2021-24042\", \"datePublished\": \"2022-01-04T18:55:08.000Z\", \"dateReserved\": \"2021-01-13T00:00:00.000Z\", \"dateUpdated\": \"2025-05-22T18:36:53.143Z\", \"state\": \"PUBLISHED\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.