CVE-2021-24043

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.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.62%
Vendor Advisory whatsapp.com Vendor Advisory whatsapp.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.whatsapp.com/security/advisories/2021/ not applicable vendor advisory
https://www.whatsapp.com/security/advisories/2022/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-24043?
CVE-2021-24043 has been scored as a critical severity vulnerability.
How to fix CVE-2021-24043?
To fix CVE-2021-24043, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24043 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-24043 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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