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CVE-2020-10028 : Security Advisory and Response

Discover the impact of CVE-2020-10028, a high-severity vulnerability in Zephyr's GPIO subsystem. Learn about affected versions, exploitation risks, and mitigation steps.

CVE-2020-10028, discovered on May 1, 2020, involves multiple syscalls in the GPIO subsystem of Zephyr, affecting versions 1.14.0 and 2.1.0 and later.

Understanding CVE-2020-10028

This CVE highlights a vulnerability in the Zephyr project's Real-Time Operating System (RTOS) related to insufficient argument validation in multiple syscalls within the GPIO subsystem.

What is CVE-2020-10028?

The issue arises from inadequate validation of arguments in certain syscalls within the GPIO subsystem of Zephyr, potentially leading to security risks.

The Impact of CVE-2020-10028

The vulnerability's high severity rating (CVSS base score of 7.8) stems from its potential to impact confidentiality, integrity, and availability, with a low level of privileges required for exploitation.

Technical Details of CVE-2020-10028

This section delves into the specific technical aspects of the CVE.

Vulnerability Description

The vulnerability involves multiple syscalls lacking proper argument validation within the GPIO subsystem of Zephyr.

Affected Systems and Versions

        Affected Product: Zephyr
        Vendor: Zephyrproject-rtos
        Vulnerable Versions: 1.14.0 and later, 2.1.0 and later

Exploitation Mechanism

        Attack Complexity: High
        Attack Vector: Local
        Privileges Required: Low
        User Interaction: None
        Scope: Changed

Mitigation and Prevention

Protecting systems from CVE-2020-10028 requires immediate actions and long-term security measures.

Immediate Steps to Take

        Apply patches provided by Zephyrproject-rtos promptly.
        Monitor official sources for updates and security advisories.
        Restrict network access to vulnerable systems.

Long-Term Security Practices

        Conduct regular security assessments and audits.
        Implement secure coding practices to prevent similar vulnerabilities.
        Educate developers and users on secure system usage.

Patching and Updates

        Stay informed about security patches and updates from Zephyrproject-rtos.
        Prioritize the installation of patches to mitigate the risk of exploitation.

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