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nvd[email protected]NVD:CVE-2019-14354
HistoryAug 10, 2019 - 4:15 p.m.

CVE-2019-14354

2019-08-1016:15:10
CWE-203
web.nvd.nist.gov
5
ledger nano s
side channel
oled display
power consumption
usb cable
confidential data

CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:N/C:P/I:N/A:N

CVSS3

2.4

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

3.4

Confidence

High

EPSS

0.001

Percentile

25.0%

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 configurations

Nvd
Node
ledgernano_s_firmwareMatch-
AND
ledgernano_sMatch-
Node
ledgernano_x_firmwareMatch-
AND
ledgernano_xMatch-
VendorProductVersionCPE
ledgernano_s_firmware-cpe:2.3:o:ledger:nano_s_firmware:-:*:*:*:*:*:*:*
ledgernano_s-cpe:2.3:h:ledger:nano_s:-:*:*:*:*:*:*:*
ledgernano_x_firmware-cpe:2.3:o:ledger:nano_x_firmware:-:*:*:*:*:*:*:*
ledgernano_x-cpe:2.3:h:ledger:nano_x:-:*:*:*:*:*:*:*

CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:N/C:P/I:N/A:N

CVSS3

2.4

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

3.4

Confidence

High

EPSS

0.001

Percentile

25.0%

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