CVE-2018-1427 : Vulnerability Insights and Analysis

IBM GSKit, a component of IBM DB2 for Linux, UNIX, and Windows, is vulnerable to a denial of service attack due to exploitable environment variables.

Understanding CVE-2018-1427

This CVE involves a vulnerability in IBM GSKit, impacting various versions of IBM DB2 for Linux, UNIX, and Windows.

What is CVE-2018-1427?

IBM GSKit in DB2 versions 9.7, 10.1, 10.5, and 11.1 contains exploitable environment variables
Attackers with local access can overflow these variables, leading to a denial of service

The Impact of CVE-2018-1427

CVSS Score: 6.2 (Medium Severity)
Attack Vector: Local
Availability Impact: High
The vulnerability could disrupt services, causing denial of service

Technical Details of CVE-2018-1427

Vulnerability Description

IBM GSKit in DB2 versions contains environment variables prone to overflow
Exploitation by a local attacker can lead to service disruption

Affected Systems and Versions

Affected Versions: 9.7, 10.1, 10.5, 11.1 of IBM DB2 for Linux, UNIX, and Windows

Exploitation Mechanism

Attackers with local system access can exploit environment variables to cause a denial of service

Mitigation and Prevention

Immediate Steps to Take

Apply vendor-supplied patches and updates promptly
Monitor system logs for any unusual activities
Restrict access to vulnerable systems

Long-Term Security Practices

Regularly update and patch software to mitigate known vulnerabilities
Implement least privilege access controls to limit potential attack surfaces

Patching and Updates

IBM has released patches to address the vulnerability in affected versions