- 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.
- Source
- cve@mitre.org
- NVD status
- Modified
CVSS 3.1
- Type
- Primary
- Base score
- 5.7
- Impact score
- 5.2
- Exploitability score
- 0.5
- Vector string
- CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
- Severity
- MEDIUM
- Hype score
- Not currently trending
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