Buffer overflow in Shapeshift Keepkey
CVE-2021-31616
Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.1.0 allow a stack buffer overflow via crafted messages. The overflow in ethereum_extractThorchainSwapData() in ethereum.c can circumvent stack protections and lead to code execution. The vulnerable interface is reachable remotely over WebUSB.
Vulnerability class: Buffer Overflow
EPSS: 0.025 (83.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Shapeshift Keepkey
- Shapeshift Keepkey_firmware
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-31616?
- CVE-2021-31616 is a high-severity vulnerability in Shapeshift Keepkey, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-05-06.
- How severe is CVE-2021-31616?
- High severity. CVSS v3 base score is 8.8 out of 10.