CVE-2023-27892
5.7
Vector
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Exploitability: 0.5 / Impact: 5.2
Source: NVD
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.
Affected (1)
Products: Shapeshift: Keepkey Firmware
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| From 7.5.2 to 7.7.0 |
| Running on/with | Platform Versions |
|---|---|
Shapeshift Keepkey | All versions |
Related CWEs
CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
CWE-125
Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
References (4)
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
Timeline
No history available yet.