CVE-2019-2516 Explained : Impact and Mitigation

A vulnerability in the Portable Clusterware component of Oracle Database Server affecting versions 11.2.0.4, 12.1.0.2, 12.2.0.1, and 18c, with potential significant impacts on other products.

Understanding CVE-2019-2516

This CVE involves a critical vulnerability in Oracle Database Server's Portable Clusterware component, allowing a high privileged attacker to compromise Portable Clusterware.

What is CVE-2019-2516?

The vulnerability in Portable Clusterware can be exploited by a high privileged attacker with Grid Infrastructure User privilege, potentially leading to a takeover of Portable Clusterware and impacting its confidentiality, integrity, and availability.

The Impact of CVE-2019-2516

Successful exploitation can result in the compromise of Portable Clusterware
The vulnerability may have significant impacts on other products
Assigned a CVSS 3.0 Base Score of 8.2
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)

Technical Details of CVE-2019-2516

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows a high privileged attacker to compromise Portable Clusterware, potentially affecting additional products.

Affected Systems and Versions

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

Exploitation Mechanism

Attacker with Grid Infrastructure User privilege can exploit the vulnerability

Mitigation and Prevention

Steps to address and prevent the CVE-2019-2516 vulnerability.

Immediate Steps to Take

Apply security patches provided by Oracle
Restrict access to high privileged accounts
Monitor and audit activities related to Portable Clusterware

Long-Term Security Practices

Regularly update and patch Oracle Database Server
Implement least privilege access controls
Conduct security training for personnel

Patching and Updates

Stay informed about security advisories from Oracle
Apply patches promptly to secure the system