CVE-2021-29702 : Vulnerability Insights and Analysis

A denial of service vulnerability has been identified in IBM's DB2 for Linux, UNIX, and Windows versions 11.1.4 and 11.5.5. An attacker can exploit this flaw to cause the server to terminate abnormally by executing a specially crafted SELECT statement.

Understanding CVE-2021-29702

This CVE pertains to a vulnerability in IBM's DB2 database management system that allows for a denial of service attack.

What is CVE-2021-29702?

CVE-2021-29702 is a vulnerability in DB2 for Linux, UNIX, and Windows that enables an attacker to trigger a denial of service condition by sending a malicious SELECT statement.

The Impact of CVE-2021-29702

The impact of this vulnerability is rated as high, with a CVSS base score of 7.5. Successful exploitation could lead to the server terminating abnormally, affecting the availability of the service.

Technical Details of CVE-2021-29702

This section covers the technical specifics of the CVE, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability in DB2 for Linux, UNIX, and Windows versions 11.1.4 and 11.5.5 allows for a denial of service attack caused by the abnormal termination of the server during the execution of a specially crafted SELECT statement.

Affected Systems and Versions

IBM's DB2 for Linux, UNIX, and Windows versions 11.1.4 and 11.5.5 are affected by this vulnerability.

Exploitation Mechanism

To exploit this vulnerability, an attacker would need to send a specially crafted SELECT statement to the DB2 server, causing it to terminate abnormally.

Mitigation and Prevention

To address CVE-2021-29702 and prevent potential attacks, consider the following mitigation strategies.

Immediate Steps to Take

IBM has released an official fix to address this vulnerability. It is recommended to apply the necessary security patches as soon as possible to mitigate the risk of exploitation.

Long-Term Security Practices

Regularly monitor security advisories from IBM and apply relevant updates promptly to secure your environment against known vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by IBM for DB2 for Linux, UNIX, and Windows. Ensure that your systems are promptly updated to the latest versions to address security issues.