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.
References
Link | Resource |
---|---|
https://blog.inhq.net/posts/keepkey-CVE-2023-27892/ | Exploit Third Party Advisory |
https://github.com/keepkey/keepkey-firmware/pull/337 | Patch |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2023-05-02T00:00:00
Updated: 2023-05-02T00:00:00
Reserved: 2023-03-06T00:00:00
Link: CVE-2023-27892
JSON object: View
NVD Information
Status : Analyzed
Published: 2023-05-02T21:15:09.337
Modified: 2023-05-10T16:07:16.483
Link: CVE-2023-27892
JSON object: View
Redhat Information
No data.
CWE