Side-channel information leakage in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
The device does not contain sufficient protection mechanisms to prevent physical side channels from exposing sensitive information due to patterns in physically observable phenomena such as variations in power consumption, electromagnetic emissions (EME), or acoustic emissions.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Chrome | * | 140.0.7339.207 (excluding) | |
| Chromium-browser | Ubuntu | upstream | * |
An adversary could monitor and measure physical phenomena to detect patterns and make inferences, even if it is not possible to extract the information in the digital domain. Physical side channels have been well-studied for decades in the context of breaking implementations of cryptographic algorithms or other attacks against security features. These side channels may be easily observed by an adversary with physical access to the device, or using a tool that is in close proximity. If the adversary can monitor hardware operation and correlate its data processing with power, EME, and acoustic measurements, the adversary might be able to recover of secret keys and data.