CVE-2023-27892

Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.7.0 allow a global buffer overflow via crafted messages

Low · published May 2, 2023

CVSS v3.1
3.8
EPSS
0%
Percentile
39.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.8 · LOW
Vector
CVSS:3.1/AC:H/AV:P/A:N/C:H/I:N/PR:H/S:U/UI:N
CVSS v4.0
Not supplied
EPSS
0.00470 · 39.7th percentile
Published
2023-05-02T00:00Z
EPSS history
Timeline
  • 02 MAY 00:00Z
    Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.7.0 allow a global buffer overflow via crafted messages
    cvelistv5