CVE-2021-0188 : Security Advisory and Response

A vulnerability has been identified in Intel(R) Processors that allows a privileged user to potentially enable an escalation of privilege via local access. This CVE was published on May 12, 2022.

Understanding CVE-2021-0188

This section will provide an in-depth look at the nature and impact of CVE-2021-0188.

What is CVE-2021-0188?

The vulnerability involves the return of a pointer value outside the expected range in the BIOS firmware for certain Intel(R) Processors, leading to a potential privilege escalation for a local user.

The Impact of CVE-2021-0188

This vulnerability could be exploited by a privileged user to escalate their privileges on affected systems, posing a significant security risk.

Technical Details of CVE-2021-0188

Let's delve into the technical aspects of CVE-2021-0188 to understand its implications better.

Vulnerability Description

The flaw allows a privileged user to manipulate pointer values in the BIOS firmware, potentially leading to privilege escalation.

Affected Systems and Versions

This vulnerability affects Intel(R) Processors, with specific versions impacted. Users are advised to refer to the provided references for detailed version information.

Exploitation Mechanism

The exploitation of this vulnerability involves manipulating the pointer value outside the expected range in the BIOS firmware, thereby enabling privilege escalation.

Mitigation and Prevention

In this section, we outline steps to mitigate the risks associated with CVE-2021-0188 and prevent potential exploits.

Immediate Steps to Take

Users should apply security patches and updates provided by Intel to address this vulnerability promptly. Additionally, restricting physical access to systems can help mitigate the risk of local exploits.

Long-Term Security Practices

Implementing strong access controls, regular security audits, and monitoring for unusual system behavior can enhance long-term security posture.

Patching and Updates

Regularly check for security advisories from Intel and apply firmware updates to address known vulnerabilities.