CVE-2020-13594

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Third-Party Advisory github.io Third-Party Advisory github.io Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://asset-group.github.io/disclosures/sweyntooth/ third party advisory
https://asset-group.github.io/cves.html third party advisory
https://github.com/espressif/esp32-bt-lib third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-13594?
CVE-2020-13594 has been scored as a medium severity vulnerability.
How to fix CVE-2020-13594?
To fix CVE-2020-13594, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-13594 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-13594 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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