CVE-2021-24043 Information

Description

A missing bound check in RTCP flag parsing code prior to WhatsApp for Android v2.21.23.2 WhatsApp Business for Android v2.21.23.2 WhatsApp for iOS v2.21.230.6 WhatsApp Business for iOS 2.21.230.7 and WhatsApp Desktop v2.2145.0 could have allowed an out-of-bounds heap read if a user sent a malformed RTCP packet during an established call.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Reference

https://www.whatsapp.com/security/advisories/2021/ https://www.whatsapp.com/security/advisories/2022/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

HIGH

Base Severity

9.1