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Insufficient length checks in the ShapeShift KeepKey...

Moderate severity Unreviewed Published May 2, 2023 to the GitHub Advisory Database • Updated Jan 30, 2025

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

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.

References

Published by the National Vulnerability Database May 2, 2023
Published to the GitHub Advisory Database May 2, 2023
Last updated Jan 30, 2025

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(39th percentile)

Weaknesses

CVE ID

CVE-2023-27892

GHSA ID

GHSA-76qj-23pr-3333

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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