CVE-2021-2438 : Security Advisory and Response
Discover the impact of CVE-2021-2438, a vulnerability in Oracle Database Server's Java VM component affecting versions 12.1.0.2, 12.2.0.1, and 19c. Learn how attackers can exploit the flaw and ways to mitigate the risk.
This CVE-2021-2438 article provides insights into a vulnerability found in the Java VM component of Oracle Database Server, affecting versions 12.1.0.2, 12.2.0.1, and 19c, allowing attackers to compromise Java VM.
Understanding CVE-2021-2438
This section delves into the details of the CVE-2021-2438 vulnerability.
What is CVE-2021-2438?
The vulnerability lies in the Java VM component of Oracle Database Server, impacting versions 12.1.0.2, 12.2.0.1, and 19c. Attackers with low privilege and Create Procedure privilege can exploit the flaw via Oracle Net, leading to partial denial of service of Java VM.
The Impact of CVE-2021-2438
Successful exploitation of this vulnerability could allow unauthorized parties to disrupt Java VM, potentially causing a partial denial of service.
Technical Details of CVE-2021-2438
This section provides technical details of the CVE-2021-2438 vulnerability.
Vulnerability Description
The vulnerability in the Java VM component of Oracle Database Server can be exploited by attackers with Create Procedure privilege via Oracle Net, resulting in potential partial denial of service of Java VM.
Affected Systems and Versions
The affected systems include Oracle Database - Enterprise Edition versions 12.1.0.2, 12.2.0.1, and 19c.
Exploitation Mechanism
Low-privileged attackers with Create Procedure privilege and network access via Oracle Net can exploit this vulnerability.
Mitigation and Prevention
This section discusses the necessary steps to mitigate and prevent CVE-2021-2438.
Immediate Steps to Take
Organizations using the affected versions should apply relevant patches and monitor network traffic for any signs of exploitation.
Long-Term Security Practices
Implementing the principle of least privilege, regular security audits, and employee cybersecurity training can enhance long-term security.
Patching and Updates
Regularly update the Oracle Database Server to the latest versions, and apply security patches released by Oracle to mitigate the risk posed by CVE-2021-2438.