CVE-2021-26373 : Security Advisory and Response
Discover the impact of CVE-2021-26373, a critical vulnerability in AMD processors due to inadequate bound checks in the SMU. Learn how to mitigate the risk and protect your systems.
A vulnerability has been identified in AMD processors that could lead to a denial of service due to insufficient bound checks in the System Management Unit (SMU).
Understanding CVE-2021-26373
This section will provide insights into the nature of the vulnerability and its impact.
What is CVE-2021-26373?
The CVE-2021-26373 vulnerability stems from inadequate bound checks in the SMU of AMD processors. This flaw could trigger a system voltage malfunction, potentially causing denial of resources and leading to a denial of service.
The Impact of CVE-2021-26373
The impact of this vulnerability is significant as it could result in disruption of services and availability due to a system voltage malfunction caused by insufficient bound checks in SMU.
Technical Details of CVE-2021-26373
In this section, we will delve into specific technical details of the CVE-2021-26373 vulnerability.
Vulnerability Description
The vulnerability arises from insufficient bound checks in the SMU, which may lead to denial of resources and services within affected AMD processors.
Affected Systems and Versions
AMD processors including EPYC™ Processors, Ryzen™ Series, and Athlon™ Series are affected by this vulnerability across various versions.
Exploitation Mechanism
Exploiting this vulnerability involves leveraging the insufficient bound checks in SMU to trigger system voltage malfunctions, thereby causing denial of resources and services.
Mitigation and Prevention
To address and prevent the CVE-2021-26373 vulnerability, certain measures need to be taken.
Immediate Steps to Take
Users are advised to stay informed about security updates from AMD and apply patches promptly to mitigate the risk of exploitation.
Long-Term Security Practices
Maintaining an updated system and following security best practices is essential to enhance the overall security posture and mitigate potential vulnerabilities.
Patching and Updates
Regularly checking for security advisories and applying recommended patches from AMD is crucial to safeguard systems against CVE-2021-26373.