CVE-2020-35473
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…
Does this matter?
Lower severity and a low EPSS score (0.35%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.35% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-203, CWE-294
- Affected
- bluetooth/bluetooth core specification
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.