CVE-2019-18671

critical

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

https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3

https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065

https://github.com/keepkey/keepkey-firmware/commit/b222c66cdd7c3203d917c80ba615082d309d80c3

https://blog.inhq.net/posts/keepkey-CVE-2019-18671/

Details

Source: Mitre, NVD

Published: 2019-12-06

Updated: 2020-02-12

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical