CVE-2022-48188 : Security Advisory and Response

A buffer overflow vulnerability in the SecureBootDXE BIOS driver of some Lenovo Desktop and ThinkStation models has been discovered. Find out the impact, technical details, and how to mitigate this CVE.

Understanding CVE-2022-48188

This section will provide an overview of the CVE-2022-48188 vulnerability.

What is CVE-2022-48188?

CVE-2022-48188 is a buffer overflow vulnerability found in the SecureBootDXE BIOS driver of certain Lenovo Desktop and ThinkStation models. It could be exploited by an attacker with local access to escalate their privileges and execute arbitrary code.

The Impact of CVE-2022-48188

The vulnerability poses a medium-severity threat with a base score of 6.7 (CVSS:3.1). It has a low attack complexity but could have a high impact on confidentiality, integrity, and availability if exploited.

Technical Details of CVE-2022-48188

Explore the technical aspects of the CVE-2022-48188 vulnerability below.

Vulnerability Description

The vulnerability stems from a buffer overflow issue in the SecureBootDXE BIOS driver, allowing local attackers to execute arbitrary code.

Affected Systems and Versions

Lenovo ThinkStation BIOS versions are impacted by this vulnerability, with various versions reported as affected.

Exploitation Mechanism

The vulnerability requires local access for exploitation, enabling attackers to elevate their privileges and execute malicious code.

Mitigation and Prevention

Discover the steps to mitigate and prevent exploitation of CVE-2022-48188.

Immediate Steps to Take

Users are advised to update their system firmware to the version specified in the related Lenovo advisory to safeguard against this vulnerability.

Long-Term Security Practices

Regularly updating system firmware and monitoring security advisories can help prevent potential exploits.

Patching and Updates

Stay informed about security patches and updates released by Lenovo to address vulnerabilities like CVE-2022-48188.