CVE-2019-18671
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.27% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- keepkey/keepkey firmware
- Source
- cve@mitre.org
References
- https://blog.inhq.net/posts/keepkey-CVE-2019-18671/
- https://github.com/keepkey/keepkey-firmware/commit/b222c66cdd7c3203d917c80ba615082d309d80c3Patch, Third Party Advisory
- https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065Release Notes, Third Party Advisory
- https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3Third Party Advisory
- https://blog.inhq.net/posts/keepkey-CVE-2019-18671/
- https://github.com/keepkey/keepkey-firmware/commit/b222c66cdd7c3203d917c80ba615082d309d80c3Patch, Third Party Advisory
- https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065Release Notes, Third Party Advisory
- https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.