CVE-2020-35473
Last modified
CVE-2020-35473 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.34% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Bluetooth | Bluetooth Core Specification | >= 4.0, <= 5.2 |
References
- https://dl.acm.org/doi/10.1145/3548606.3559372Technical Description, Third Party Advisory
- https://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.htmlTechnical Description, Third Party Advisory
- https://dl.acm.org/doi/10.1145/3548606.3559372Technical Description, Third Party Advisory
- https://www.sigsac.org/ccs/CCS2022/proceedings/ccs-proceedings.htmlTechnical Description, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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