How does CVE-2020-35473 affect Bluetooth devices?

CVE-2020-35473 may be used to identify devices using Resolvable Private Addressing (RPA) by exploiting an information leakage vulnerability in the Bluetooth advertisement scan response.

What is the severity of CVE-2020-35473?

CVE-2020-35473 has a severity score of 4.3, which is considered medium.

How can I fix CVE-2020-35473?

To mitigate CVE-2020-35473, it is recommended to update the affected software to a version that addresses the vulnerability.

Where can I find more information about CVE-2020-35473?

More information about CVE-2020-35473 can be found in the references provided: [link1](https://dl.acm.org/doi/10.1145/3548606.3559372) and [link2](https://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.html).

Vulnerability/
CVE-2020-35473

medium

4.3

CWE

203 294

8/11/2022

4/8/2024

CVE-2020-35473

Q: What is CVE-2020-35473?

CVE-2020-35473 is an information leakage vulnerability in the Bluetooth Low Energy advertisement scan response in Bluetooth Core Specifications 4.0 through 5.2.

First published: Tue Nov 08 2022(Updated: )

An information leakage vulnerability in the Bluetooth Low Energy advertisement scan response in Bluetooth Core Specifications 4.0 through 5.2, and extended scan response in Bluetooth Core Specifications 5.0 through 5.2, may be used to identify devices using Resolvable Private Addressing (RPA) by their response or non-response to specific scan requests from remote addresses. RPAs that have been associated with a specific remote device may also be used to identify a peer in the same manner by using its reaction to an active scan request. This has also been called an allowlist-based side channel.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Bluetooth Bluetooth Core Specification	>=4.0<=5.2

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Frequently Asked Questions

What is CVE-2020-35473?
CVE-2020-35473 is an information leakage vulnerability in the Bluetooth Low Energy advertisement scan response in Bluetooth Core Specifications 4.0 through 5.2.
How does CVE-2020-35473 affect Bluetooth devices?
CVE-2020-35473 may be used to identify devices using Resolvable Private Addressing (RPA) by exploiting an information leakage vulnerability in the Bluetooth advertisement scan response.
What is the severity of CVE-2020-35473?
CVE-2020-35473 has a severity score of 4.3, which is considered medium.
How can I fix CVE-2020-35473?
To mitigate CVE-2020-35473, it is recommended to update the affected software to a version that addresses the vulnerability.
Where can I find more information about CVE-2020-35473?
More information about CVE-2020-35473 can be found in the references provided: [link1](https://dl.acm.org/doi/10.1145/3548606.3559372) and [link2](https://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.html).

collector/nvd-index
agent/references
agent/severity
agent/weakness
agent/author
agent/description
agent/type
agent/event
agent/last-modified-date
agent/softwarecombine
agent/first-publish-date
agent/tags
collector/mitre-cve
source/MITRE
vendor/bluetooth
canonical/bluetooth bluetooth core specification
version/bluetooth bluetooth core specification/4.0
version/bluetooth bluetooth core specification/5.2

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