CVE-2019-2518 : Security Advisory and Response

A vulnerability in the Oracle Database Server's Java VM component affecting multiple versions.

Understanding CVE-2019-2518

What is CVE-2019-2518?

Vulnerability in Oracle Database Server's Java VM component
Affected versions: 11.2.0.4, 12.1.0.2, 12.2.0.1, 18c, 19c
CVSS 3.0 Base Score: 7.5
Impact on confidentiality, integrity, and availability

The Impact of CVE-2019-2518

Allows low-privileged attackers to compromise Java VM
Potential complete takeover of Java VM

Technical Details of CVE-2019-2518

Vulnerability Description

Challenging exploit requiring low privileges
Attackers need Create Session and Create Procedure privileges
Network access through multiple protocols required

Affected Systems and Versions

Oracle Database versions 11.2.0.4, 12.1.0.2, 12.2.0.1, 18c, 19c

Exploitation Mechanism

Attackers with low privileges can compromise Java VM
Successful exploitation leads to Java VM takeover

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by Oracle
Monitor for any unauthorized access
Restrict network access to the database

Long-Term Security Practices

Regularly update and patch Oracle Database
Implement the principle of least privilege

Patching and Updates

Stay informed about security updates from Oracle
Apply patches promptly to secure the database