CVE-2019-14354
On Ledger Nano S and Nano X 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 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2019-14354?
CVE-2019-14354 has been categorized as a moderate severity vulnerability.
How does CVE-2019-14354 affect Ledger devices?
CVE-2019-14354 allows for partial recovery of display contents through a side channel in the OLED display of Ledger Nano S and Nano X devices.
What are the affected devices for CVE-2019-14354?
The affected devices for CVE-2019-14354 are the Ledger Nano S and Ledger Nano X.
Can CVE-2019-14354 be exploited remotely?
No, CVE-2019-14354 requires physical access to the device, such as through a hardware implant in the USB cable.
How can I protect my Ledger device from CVE-2019-14354?
To mitigate CVE-2019-14354, ensure your device is used in a secure environment and consider physical security measures.