CVE-2021-24043 Memory corruption in n/a
A missing bound check in RTCP parsing allows attackers to trigger an out-of-bounds heap read via malformed packets during calls, potentially exposing memory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-24043?
CVE-2021-24043 is a critical memory corruption vulnerability in n/a, published on 2 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2021-24043?
It affects 2 products.
Products include Whatsapp Whatsapp, Whatsapp Whatsapp Business.
How do I fix CVE-2021-24043?
No fix has been published for CVE-2021-24043 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-24043 being exploited?
There is no known exploitation of CVE-2021-24043 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-rxmh-549p-v6m7.