CVE-2021-0153 : Security Advisory and Response

A privilege escalation vulnerability, CVE-2021-0153, affects some Intel(R) Processors due to an out-of-bounds write in the BIOS firmware. This flaw could be exploited by a privileged local user to potentially escalate their privileges.

Understanding CVE-2021-0153

This section delves into the key aspects of the CVE-2021-0153 vulnerability.

What is CVE-2021-0153?

The vulnerability in the BIOS firmware of certain Intel(R) Processors can be leveraged by a privileged user with local access to potentially escalate their privileges.

The Impact of CVE-2021-0153

The impact of this vulnerability is the potential escalation of privileges for an attacker with local access to the affected systems.

Technical Details of CVE-2021-0153

In this section, we explore the technical details of the CVE-2021-0153 vulnerability.

Vulnerability Description

The vulnerability arises from an out-of-bounds write in the BIOS firmware, providing an opportunity for privilege escalation.

Affected Systems and Versions

The vulnerability affects Intel(R) Processors, with specific version details provided in the references.

Exploitation Mechanism

A privileged user with local access could exploit this vulnerability to escalate their privileges on the affected systems.

Mitigation and Prevention

Protecting against CVE-2021-0153 involves taking immediate steps and implementing long-term security practices.

Immediate Steps to Take

Immediate actions include monitoring for security advisories and applying necessary patches.

Long-Term Security Practices

Implementing strong access controls, regular security updates, and security training can help prevent privilege escalation vulnerabilities.

Patching and Updates

Regularly applying firmware and software updates, especially those addressing security vulnerabilities, is crucial in mitigating the risks associated with CVE-2021-0153.