Learn about CVE-2023-40687 impacting IBM Db2 for Linux, UNIX, and Windows versions 10.5, 11.1, and 11.5. Get insights on the vulnerability, impact, affected systems, and mitigation steps.
IBM Db2 for Linux, UNIX, and Windows versions 10.5, 11.1, and 11.5 is susceptible to a denial-of-service vulnerability when a specially crafted RUNSTATS command is executed on an 8TB table. This CVE was published by IBM on December 4, 2023.
Understanding CVE-2023-40687
This section will delve into the details of the CVE-2023-40687 vulnerability.
What is CVE-2023-40687?
CVE-2023-40687 is a vulnerability affecting IBM Db2 for Linux, UNIX, and Windows versions 10.5, 11.1, and 11.5 that allows an attacker to launch a denial-of-service attack using a specifically crafted RUNSTATS command.
The Impact of CVE-2023-40687
The impact of this vulnerability is rated as MEDIUM severity with a CVSSv3.1 base score of 5.3. The attack complexity is considered HIGH, with a HIGH availability impact.
Technical Details of CVE-2023-40687
In this section, we will explore the technical aspects of CVE-2023-40687.
Vulnerability Description
The vulnerability in IBM Db2 for Linux, UNIX, and Windows arises from improper input validation, specifically associated with the RUNSTATS command on large tables.
Affected Systems and Versions
IBM Db2 versions 10.5, 11.1, and 11.5 on Linux, UNIX, and Windows platforms are affected by this vulnerability.
Exploitation Mechanism
An attacker can exploit this vulnerability by executing a specially crafted RUNSTATS command on an 8TB table.
Mitigation and Prevention
This section will guide on the mitigation and prevention strategies for CVE-2023-40687.
Immediate Steps to Take
Users are advised to apply the security updates provided by IBM to patch the vulnerability and prevent exploitation.
Long-Term Security Practices
Incorporating secure coding practices and regular security audits can help in identifying and mitigating such vulnerabilities in the future.
Patching and Updates
Ensure your IBM Db2 for Linux, UNIX, and Windows installations are up to date with the latest security patches to address CVE-2023-40687.