CVE-2019-14353 Information disclosure in n/a
A power side-channel in Trezor One firmware allows attackers with USB access to recover displayed secrets like PINs and mnemonics.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-14353?
CVE-2019-14353 is a medium-severity vulnerability in n/a, published on 8 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-203
Which versions are affected by CVE-2019-14353?
It affects 1 product.
Products include Trezor One Firmware.
How do I fix CVE-2019-14353?
No fix has been published for CVE-2019-14353 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-14353 being exploited?
There is no known exploitation of CVE-2019-14353 in the wild and no public exploit code.
Sources
Also known as GHSA-x6r2-975h-mhpr.