CVE-2021-24042

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La lógica de llamada de WhatsApp para Android versiones anteriores a 2.21.23, WhatsApp Business para Android versiones anteriores a 2.21.23, WhatsApp para iOS versiones anteriores a 2.21.230, WhatsApp Business para iOS versiones anteriores a 2.21.230, WhatsApp para KaiOS versiones anteriores a 2.2143, WhatsApp Desktop versiones anteriores a 2.2146, podría haber permitido una escritura fuera de límites si un usuario realiza una llamada 1:1 a un actor malicioso

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-13 CVE Reserved
2022-01-04 CVE Published
2024-08-03 CVE Updated
2024-09-19 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-122: Heap-based Buffer Overflow
CWE-787: Out-of-bounds Write

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.whatsapp.com/security/advisories/2021	2022-01-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Whatsapp Search vendor "Whatsapp"		Whatsapp Search vendor "Whatsapp" for product "Whatsapp"				< 2.21.23 Search vendor "Whatsapp" for product "Whatsapp" and version " < 2.21.23"		android		Affected
Whatsapp Search vendor "Whatsapp"		Whatsapp Search vendor "Whatsapp" for product "Whatsapp"				< 2.21.23 Search vendor "Whatsapp" for product "Whatsapp" and version " < 2.21.23"		business, android		Affected
Whatsapp Search vendor "Whatsapp"		Whatsapp Search vendor "Whatsapp" for product "Whatsapp"				< 2.21.230 Search vendor "Whatsapp" for product "Whatsapp" and version " < 2.21.230"		iphone_os		Affected
Whatsapp Search vendor "Whatsapp"		Whatsapp Search vendor "Whatsapp" for product "Whatsapp"				< 2.21.230 Search vendor "Whatsapp" for product "Whatsapp" and version " < 2.21.230"		business, iphone_os		Affected
Whatsapp Search vendor "Whatsapp"		Whatsapp Search vendor "Whatsapp" for product "Whatsapp"				< 2.2143 Search vendor "Whatsapp" for product "Whatsapp" and version " < 2.2143"		kaios		Affected
Whatsapp Search vendor "Whatsapp"		Whatsapp Search vendor "Whatsapp" for product "Whatsapp"				< 2.2146 Search vendor "Whatsapp" for product "Whatsapp" and version " < 2.2146"		desktop		Affected