CVE-2018-1977 : Vulnerability Insights and Analysis
Learn about CVE-2018-1977 affecting IBM DB2 version 11.1. Understand the impact, technical details, and mitigation steps for this denial of service vulnerability.
IBM DB2 for Linux, UNIX, and Windows version 11.1 has a vulnerability that could lead to a denial of service attack.
Understanding CVE-2018-1977
This CVE involves a specific version of IBM DB2 for Linux, UNIX, and Windows that is susceptible to a denial of service vulnerability.
What is CVE-2018-1977?
The version 11.1 of IBM DB2 for Linux, UNIX, and Windows has a vulnerability that can be exploited by an authenticated user to execute a specially crafted SELECT statement with a TRUNCATE function, potentially leading to a denial of service.
The Impact of CVE-2018-1977
- CVSS Base Score: 5.3 (Medium Severity)
- Attack Vector: Network
- Attack Complexity: High
- Availability Impact: High
- Exploit Code Maturity: Unproven
- This vulnerability could allow an authenticated remote attacker to disrupt the service by executing a malicious SELECT statement.
Technical Details of CVE-2018-1977
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in IBM DB2 for Linux, UNIX, and Windows version 11.1 allows an authenticated user to trigger a denial of service by executing a specially crafted SELECT statement with a TRUNCATE function.
Affected Systems and Versions
- Affected Product: DB2 for Linux, UNIX, and Windows
- Vendor: IBM
- Affected Version: 11.1
Exploitation Mechanism
To exploit this vulnerability, an authenticated DB2 user needs to execute a SELECT statement with a specially crafted TRUNCATE function.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.
Immediate Steps to Take
- Apply the official fix provided by IBM to patch the vulnerability.
- Monitor and restrict access to the affected systems to prevent unauthorized exploitation.
Long-Term Security Practices
- Regularly update and patch the DB2 software to mitigate known vulnerabilities.
- Implement strong authentication mechanisms to control access to the database.
Patching and Updates
Ensure that all DB2 installations are updated with the latest security patches to protect against known vulnerabilities.