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

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-05-02T00:00:00

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

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

Link: CVE-2023-27892

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

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

Modified: 2023-05-10T16:07:16.483

Link: CVE-2023-27892

cve-icon Redhat

No data.