Description
Insufficient checks in the USB packet handling of the ShapeShift KeepKey hardware wallet before firmware 6.2.2 allow out-of-bounds writes in the .bss segment via crafted messages. The vulnerability could allow code execution or other forms of impact. It can be triggered by unauthenticated attackers and the interface is reachable via WebUSB.
References (4)
Core 4
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/keepkey/keepkey-firmware/commit/b222c66cdd7c3203d917c80ba615082d309d80c3
Release Notes, Third Party Advisory x_refsource_misc
https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065
Third Party Advisory x_refsource_confirm
https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3
Various Sources x_refsource_misc
https://blog.inhq.net/posts/keepkey-CVE-2019-18671/
Scores
CVSS v3
9.8
EPSS
0.0327
EPSS Percentile
86.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (1)
keepkey/keepkey_firmware
< 6.2.2
Published
Dec 06, 2019
Tracked Since
Feb 18, 2026