CVE-2021-2073 : Security Advisory and Response

This article provides details about CVE-2021-2073, a vulnerability in the Oracle VM VirtualBox product that can lead to a denial of service (DOS) attack.

Understanding CVE-2021-2073

CVE-2021-2073 is a vulnerability in Oracle VM VirtualBox that could allow a high privileged attacker to compromise the system, leading to a DOS condition.

What is CVE-2021-2073?

The vulnerability in Oracle VM VirtualBox allows an attacker with logon access to compromise the system, potentially resulting in a complete DOS of the VirtualBox.

The Impact of CVE-2021-2073

Successful exploitation of this vulnerability can enable unauthorized users to cause system hang or crashes, impacting the availability of the VirtualBox.

Technical Details of CVE-2021-2073

The vulnerability affects Oracle VM VirtualBox versions prior to 6.1.18 and has a CVSS 3.1 Base Score of 4.4 with high availability impact.

Vulnerability Description

The vulnerability allows a high privileged attacker to compromise Oracle VM VirtualBox, potentially leading to a DOS condition.

Affected Systems and Versions

The affected product is VM VirtualBox by Oracle Corporation, versions below 6.1.18.

Exploitation Mechanism

The vulnerability can be exploited by an attacker with logon access to the VirtualBox infrastructure, allowing them to compromise the system.

Mitigation and Prevention

To address CVE-2021-2073, users should take immediate action to secure their VirtualBox environment and implement long-term security practices.

Immediate Steps to Take

Users should apply the latest security updates provided by Oracle to patch the vulnerability and secure their VirtualBox instances.

Long-Term Security Practices

Implement strict access controls, regularly update VirtualBox software, and monitor for any suspicious activities to enhance the security of the environment.

Patching and Updates

Stay informed about security advisories from Oracle and promptly apply patches and updates to mitigate the risk of exploitation.