CVE-2022-29643 Memory corruption in n/a

High 7.5 Published 18 May 2022 Updated 3 Aug 2024

Attackers can cause a Denial of Service on TOTOLINK routers via a crafted POST request exploiting a stack overflow in the setMacQos function.

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-2022-29643?

CVE-2022-29643 is a high-severity memory corruption vulnerability in n/a, published on 18 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

TOTOLINK A3100R V4.1.2cu.5050_B20200504 and V4.1.2cu.5247_B20211129 were discovered to contain a stack overflow via the macAddress parameter in the function setMacQos. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

Weakness: CWE-787

Which versions are affected by CVE-2022-29643?

It affects 1 product.

Products include Totolink A3100r Firmware.

How do I fix CVE-2022-29643?

No fix has been published for CVE-2022-29643 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-2022-29643 being exploited?

There is no known exploitation of CVE-2022-29643 in the wild and no public exploit code.

Sources

Also known as GHSA-wc76-9jqq-r863.