CVE-2023-27892
Published May 2, 2023
Last updated 2 years ago
Overview
- 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
- Analyzed
Risk scores
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
Weaknesses
- nvd@nist.gov
- CWE-125
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:shapeshift:keepkey_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A1C9272A-8363-487C-909D-4D7E7A1929D4",
"versionEndExcluding": "7.7.0",
"versionStartIncluding": "7.5.2"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:shapeshift:keepkey:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "663CE48F-F657-40AA-8954-EADA31C9DFB1"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
]