On ShapeShift KeepKey devices, a side channel for the row-based OLED display was found. The power consumption of each row-based display cycle depends on the number of illuminated pixels, allowing a partial recovery of display contents. For example, a hardware implant in the USB cable might be able to leverage this behavior to recover secret data shown on the display. In other words, the side channel is relevant only if the attacker has enough control over the device's USB connection to make power-consumption measurements at a time when secret data is displayed. The side channel is not relevant in other circumstances, such as a stolen device that is not currently displaying secret data. NOTE: the vendor's position is that there is "insignificant risk.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-08-10T15:41:57

Updated: 2024-08-05T00:12:43.567Z

Reserved: 2019-07-28T00:00:00

Link: CVE-2019-14355

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-08-10T16:15:11.300

Modified: 2024-08-05T00:15:57.687

Link: CVE-2019-14355

cve-icon Redhat

No data.