CVE-2020-12912 : Vulnerability Insights and Analysis

A potential vulnerability in the AMD extension to Linux "hwmon" service may allow an attacker to use the Linux-based Running Average Power Limit (RAPL) interface to show various side channel attacks. In line with industry partners, AMD has updated the RAPL interface to require privileged access.

Understanding CVE-2020-12912

This CVE involves a vulnerability in the AMD extension to Linux "hwmon" service that could be exploited by attackers.

What is CVE-2020-12912?

The vulnerability in the AMD extension to Linux "hwmon" service could enable attackers to utilize the RAPL interface for side channel attacks.

The Impact of CVE-2020-12912

The vulnerability could potentially lead to security breaches and unauthorized access to sensitive information.

Technical Details of CVE-2020-12912

This section provides technical insights into the CVE.

Vulnerability Description

The vulnerability allows attackers to exploit the RAPL interface for side channel attacks.

Affected Systems and Versions

Product: AMD extension to Linux "hwmon" for Zen1 platforms
Versions: Each Linux distro determines its own version

Exploitation Mechanism

Attackers can leverage the Linux-based RAPL interface to conduct side channel attacks.

Mitigation and Prevention

Protective measures to address the CVE.

Immediate Steps to Take

Ensure privileged access is required for the RAPL interface
Monitor for any suspicious activities related to the vulnerability

Long-Term Security Practices

Regularly update and patch systems to prevent vulnerabilities
Implement access controls and restrictions to mitigate potential risks

Patching and Updates

Apply the updated RAPL interface provided by AMD to enhance security measures