Vulnerability Description
On Trezor One devices before 1.8.2, 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 confidential secrets such as the PIN and BIP39 mnemonic. 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: this CVE applies exclusively to the Trezor One, and does not refer to any issues with OLED displays on other devices.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Trezor | One Firmware | < 1.8.2 |
| Trezor | One | - |
Related Weaknesses (CWE)
References
- https://blog.trezor.io/details-of-the-oled-vulnerability-and-its-mitigation-d331ExploitMitigationThird Party Advisory
- https://blog.trezor.io/details-of-the-oled-vulnerability-and-its-mitigation-d331ExploitMitigationThird Party Advisory
FAQ
What is CVE-2019-14353?
CVE-2019-14353 is a vulnerability with a CVSS score of 4.2 (MEDIUM). On Trezor One devices before 1.8.2, 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...
How severe is CVE-2019-14353?
CVE-2019-14353 has been rated MEDIUM with a CVSS base score of 4.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-14353?
Check the references section above for vendor advisories and patch information. Affected products include: Trezor One Firmware, Trezor One.