CVEvulnerability
CVE-2021-31609
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-09-07
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 3.3 LOW — AV:A/AC:L/Au:N/C:N/I:N/A:P
Description
The Bluetooth Classic implementation in Silicon Labs iWRAP 6.3.0 and earlier does not properly handle the reception of an oversized LMP packet greater than 17 bytes, allowing attackers in radio range to trigger a crash in WT32i via a crafted LMP packet.
Affected configurations
• silabs iwrap (<= 6.3.0)
References
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdf Technical Description, Third Party Advisory
- https://www.silabs.com/wireless/bluetooth/bluegiga-classic-legacy-modules/device.wt32i-a Product, Vendor Advisory
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdf Technical Description, Third Party Advisory
- https://www.silabs.com/wireless/bluetooth/bluegiga-classic-legacy-modules/device.wt32i-a Product, Vendor Advisory