Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware prior to 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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
shapeshift keepkey_firmware |
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