CVE-2019-14356
CVSS V2 Medium 5
CVSS V3 Medium 5.3
Description
** DISPUTED ** On Coldcard MK1 and MK2 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. On Coldcard MK1 and MK2 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. NOTE: At Coinkite, we’ve already mitigated it, even though we feel strongly that it is not a legitimate issue. In our opinion, it is both unproven (might not even work) and also completely impractical—even if it could be made to work perfectly.
Overview
- CVE ID
- CVE-2019-14356
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-10-31T18:15:11
- Last Modified Date
- 2022-04-18T14:30:00
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:coinkite:coldcard_mk1_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.1.2 | |
| cpe:2.3:h:coinkite:coldcard_mk1:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:coinkite:coldcard_mk2_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.1.2 | |
| cpe:2.3:h:coinkite:coldcard_mk2:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 5.3
- Base Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://blog.coinkite.com/noise-troll/ | Patch Vendor Advisory |
| https://github.com/someone42/hardware-bitcoin-wallet/blob/master/pic32/ssd1306.c | Exploit Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-14356 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14356 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:42:22 | Added to TrackCVE | |||
| 2022-12-04 05:15:53 | 2019-10-31T18:15Z | 2019-10-31T18:15:11 | CVE Published Date | updated |
| 2022-12-04 05:15:53 | 2022-04-18T14:30:00 | CVE Modified Date | updated | |
| 2022-12-04 05:15:53 | Analyzed | Vulnerability Status | updated |