CVE-2021-34143
The Bluetooth Classic implementation in the Zhuhai Jieli AC6366C_DEMO_V1.0 does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service (deadlock) of the device by…
Does this matter?
Lower severity and a low EPSS score (0.74%). Track it; it rarely justifies an emergency change on its own.
Description
The Bluetooth Classic implementation in the Zhuhai Jieli AC6366C_DEMO_V1.0 does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service (deadlock) of the device by flooding it with LMP_AU_Rand packets after paging procedure. User intervention is required to restart the device.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.74% probability · 53th percentile
- CISA KEV
- Not listed
- Affected
- zh-jieli/fw-ac63 bt sdk
- Source
- cve@mitre.org
References
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdfBroken Link
- https://github.com/Jieli-Tech/fw-AC63_BT_SDKThird Party Advisory
- https://launchstudio.bluetooth.com/ListingDetails/91371Third Party Advisory
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdfBroken Link
- https://github.com/Jieli-Tech/fw-AC63_BT_SDKThird Party Advisory
- https://launchstudio.bluetooth.com/ListingDetails/91371Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.