VulnerabilityModified
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.
HIGH 8.8EPSS 2.50%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.50% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- shapeshift/keepkey firmware
- Source
- cve@mitre.org
References
- https://blog.inhq.net/posts/keepkey-CVE-2021-31616/Exploit, Patch, Third Party Advisory
- https://github.com/keepkey/keepkey-firmware/commit/e49d45594002d4d3fbc1f03488e6dfc0a0a65836Patch, Third Party Advisory
- https://github.com/keepkey/keepkey-firmware/releases/tag/v7.1.0Release Notes, Third Party Advisory
- https://shapeshift.com/library/keepkey-important-update-issued-april-4-requiredVendor Advisory
- https://blog.inhq.net/posts/keepkey-CVE-2021-31616/Exploit, Patch, Third Party Advisory
- https://github.com/keepkey/keepkey-firmware/commit/e49d45594002d4d3fbc1f03488e6dfc0a0a65836Patch, Third Party Advisory
- https://github.com/keepkey/keepkey-firmware/releases/tag/v7.1.0Release Notes, Third Party Advisory
- https://shapeshift.com/library/keepkey-important-update-issued-april-4-requiredVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.