CVE-2021-43636 Memory corruption in n/a

Critical 9.8 Published 25 Mar 2022 Updated 4 Aug 2024

Buffer overflow in T10 firmware HTTP parser allows attackers to execute arbitrary code or cause denial of service.

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-2021-43636?

CVE-2021-43636 is a critical memory corruption vulnerability in n/a, published on 25 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Two Buffer Overflow vulnerabilities exists in T10 V2_Firmware V4.1.8cu.5207_B20210320 in the http_request_parse function when processing host data in the HTTP request process.

Weakness: CWE-120

Which versions are affected by CVE-2021-43636?

It affects 1 product.

Products include Totolink T10 V2 Firmware.

How do I fix CVE-2021-43636?

No fix has been published for CVE-2021-43636 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-2021-43636 being exploited?

There is no known exploitation of CVE-2021-43636 in the wild and no public exploit code.

Sources

Also known as GHSA-3c89-xf6c-m942.