CVE-2020-13594 Denial of service in n/a
Attackers in radio range can crash ESP32 devices by sending crafted Bluetooth Low Energy connection request packets due to improper channel map validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-13594?
CVE-2020-13594 is a medium-severity denial of service vulnerability in n/a, published on 31 Aug 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Bluetooth Low Energy (BLE) controller implementation in Espressif ESP-IDF 4.2 and earlier (for ESP32 devices) does not properly restrict the channel map field of the connection request packet on reception, allowing attackers in radio range to cause a denial of service (crash) via a crafted packet.
Weakness: CWE-20
Which versions are affected by CVE-2020-13594?
It affects 1 product.
Products include Espressif Esp-Idf.
How do I fix CVE-2020-13594?
No fix has been published for CVE-2020-13594 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-13594 being exploited?
There is no known exploitation of CVE-2020-13594 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-wj5v-mx63-894g.