CVE-2021-24042

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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.whatsapp.com/security/advisories/2021/	Not Applicable Vendor Advisory

Advertisement

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:whatsapp:whatsapp::::::android:-:
	cpe:2.3:a:whatsapp:whatsapp:::::business:android::
	cpe:2.3:a:whatsapp:whatsapp::::::iphone_os:-:
	cpe:2.3:a:whatsapp:whatsapp:::::business:iphone_os:-:*
	cpe:2.3:a:whatsapp:whatsapp::::::kaios::*
	cpe:2.3:a:whatsapp:whatsapp:::::desktop:-::

Information

Published : 2022-01-04 11:15

Updated : 2022-01-14 11:37

NVD link : CVE-2021-24042

Mitre link : CVE-2021-24042

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Advertisement

Products Affected

whatsapp

whatsapp

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.whatsapp.com/security/advisories/2021/", "name": "https://www.whatsapp.com/security/advisories/2021/", "tags": ["Not Applicable", "Vendor Advisory"], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-787"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-24042", "ASSIGNER": "cve-assign@fb.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "HIGH", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"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"}, "impactScore": 5.9, "exploitabilityScore": 3.9}}, "publishedDate": "2022-01-04T19:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:-:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.21.23"}, {"cpe23Uri": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:business:android:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.21.23"}, {"cpe23Uri": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:-:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.21.230"}, {"cpe23Uri": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:business:iphone_os:-:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.21.230"}, {"cpe23Uri": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:kaios:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.2143"}, {"cpe23Uri": "cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:desktop:-:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.2146"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-01-14T19:37Z"}