CVE-2019-4014 : Exploit Details and Defense Strategies

IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1 are vulnerable to a buffer overflow attack, potentially allowing unauthorized code execution with root privileges.

Understanding CVE-2019-4014

This CVE involves a security flaw in IBM DB2 versions that could be exploited by an authenticated local attacker to run unauthorized code with elevated privileges.

What is CVE-2019-4014?

IBM DB2 versions 9.7, 10.1, 10.5, and 11.1 for Linux, UNIX, and Windows are susceptible to a buffer overflow vulnerability.

The Impact of CVE-2019-4014

CVSS Score: 8.4 (High)
Attack Vector: Local
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Privileges Required: None
Exploit Code Maturity: Unproven
Remediation Level: Official Fix
Report Confidence: Confirmed

Technical Details of CVE-2019-4014

Vulnerability Description

The vulnerability in IBM DB2 allows an authenticated local attacker to exploit a buffer overflow, potentially leading to unauthorized code execution with root privileges.

Affected Systems and Versions

Affected Products: IBM DB2
Vulnerable Versions: 9.7, 10.1, 10.5, 11.1

Exploitation Mechanism

The vulnerability can be exploited by an authenticated local attacker to execute arbitrary code on the system with root privileges.

Mitigation and Prevention

Immediate Steps to Take

Apply official fixes provided by IBM for the affected versions.
Monitor IBM's security bulletins for updates and patches.

Long-Term Security Practices

Regularly update and patch IBM DB2 installations.
Implement least privilege access controls to limit potential damage from unauthorized code execution.
Conduct regular security assessments and audits.

Patching and Updates

Ensure timely installation of security patches and updates provided by IBM for DB2 versions 9.7, 10.1, 10.5, and 11.1.