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.
Published: 2023-05-02
Score: 3.8 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-31626 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.
History

Thu, 30 Jan 2025 17:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-120
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Shapeshift Keepkey Keepkey Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-01-30T16:42:38.016Z

Reserved: 2023-03-06T00:00:00.000Z

Link: CVE-2023-27892

cve-icon Vulnrichment

Updated: 2024-08-02T12:23:30.527Z

cve-icon NVD

Status : Modified

Published: 2023-05-02T21:15:09.337

Modified: 2025-01-30T17:15:13.877

Link: CVE-2023-27892

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses