CVE-2021-31609 Information

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.

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://dl.packetstormsecurity.net/papers/general/braktooth.pdf https://www.silabs.com/wireless/bluetooth/bluegiga-classic-legacy-modules/device.wt32i-a

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5