CVE-2019-14359
The power consumption of each row-based display cycle depends on the number of illuminated pixels, allowing a partial recovery of display contents.
Does this matter?
Lower severity and a low EPSS score (0.42%). Track it; it rarely justifies an emergency change on its own.
Description
On BC Vault devices, a side channel for the row-based SSD1309 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 a data value. 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 no security impact: the only potentially leaked information is the number of characters in the PIN
- CVSS 3.0
- 2.4 LOWCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.42% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-203
- Affected
- real-sec/bc vault firmware
- Source
- cve@mitre.org
References
- https://bc-vault.com/2019/08/our-response-to-cve-2019-14359Exploit, Third Party Advisory
- https://bc-vault.com/2019/08/our-response-to-cve-2019-14359Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.