CVE-2022-35867 : Vulnerability Insights and Analysis

A vulnerability has been identified in xhyve that allows local attackers to escalate privileges. Attackers can exploit this vulnerability by executing high-privileged code on the target guest system. This flaw exists within the e1000 virtual device due to the lack of validation of user-supplied data length.

Understanding CVE-2022-35867

This section provides an overview of the CVE-2022-35867 vulnerability.

What is CVE-2022-35867?

CVE-2022-35867 is a vulnerability in xhyve that enables local attackers to escalate privileges by executing high-privileged code on the target guest system.

The Impact of CVE-2022-35867

The vulnerability allows attackers to escalate privileges and execute arbitrary code in the context of the hypervisor.

Technical Details of CVE-2022-35867

In this section, technical details of CVE-2022-35867 are discussed.

Vulnerability Description

The vulnerability results from the lack of proper validation of user-supplied data length before copying it to a stack-based buffer.

Affected Systems and Versions

The affected product is xhyve version 0.2.0-145-g83516a.

Exploitation Mechanism

An attacker must execute high-privileged code on the target guest system to exploit this vulnerability.

Mitigation and Prevention

This section outlines strategies to mitigate and prevent the CVE-2022-35867 vulnerability.

Immediate Steps to Take

Implement proper input validation and restrict high-privileged code execution on guest systems.

Long-Term Security Practices

Regularly update software and monitor for security patches and updates.

Patching and Updates

Apply patches and updates provided by xhyve to address the vulnerability effectively.