CVE-2023-27892
Published: May 2, 2023
Modified: Jan 30, 2025
CVSS v3.1
3.8
Description
Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.7.0 allow a global buffer overflow via crafted messages. Flaws in cf_confirmExecTx() in ethereum_contracts.c can be used to reveal arbitrary microcontroller memory on the device screen or crash the device. With physical access to a PIN-unlocked device, attackers can extract the BIP39 mnemonic secret from the hardware wallet.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AC:H/AV:P/A:N/C:H/I:N/PR:H/S:U/UI:N
Attack Complexity
Attack Vector
Availability
Confidentiality
Integrity
Privileges Required
Scope
User Interaction
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