CVE-2020-16146 Memory corruption in n/a

High 7.5 Published 12 Jan 2021 Updated 4 Aug 2024

A buffer overflow in the BluFi provisioning handler allows attackers to execute arbitrary code or cause denial of service via crafted Bluetooth packets.

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-2020-16146?

CVE-2020-16146 is a high-severity memory corruption vulnerability in n/a, published on 12 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Espressif ESP-IDF 2.x, 3.0.x through 3.0.9, 3.1.x through 3.1.7, 3.2.x through 3.2.3, 3.3.x through 3.3.2, and 4.0.x through 4.0.1 has a Buffer Overflow in BluFi provisioning in btc_blufi_recv_handler function in blufi_prf.c. An attacker can send a crafted BluFi protocol Write Attribute command to characteristic 0xFF01. With manipulated packet fields, there is a buffer overflow.

Weakness: CWE-120

Which versions are affected by CVE-2020-16146?

It affects 1 product.

Products include Espressif Esp-Idf.

How do I fix CVE-2020-16146?

No fix has been published for CVE-2020-16146 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-2020-16146 being exploited?

There is no known exploitation of CVE-2020-16146 in the wild and no public exploit code.

Sources

Also known as GHSA-2wq8-q24x-h8rw.