CVE-2024-57656 in virtuoso-opensource
Summary
by MITRE • 01/14/2025
An issue in the sqlc_add_distinct_node component of openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 06/29/2025
The vulnerability identified as CVE-2024-57656 resides within the sqlc_add_distinct_node component of the openlink virtuoso-opensource version 7.2.11 database management system. This flaw represents a denial of service condition that can be triggered by attackers through the careful construction of specific SQL statements. The affected component is responsible for handling distinct node operations during query processing, making it a critical path for database execution that can be exploited to disrupt normal service operations.
The technical nature of this vulnerability stems from insufficient input validation and proper handling of distinct node operations within the SQL compilation process. When maliciously crafted SQL statements are processed through the sqlc_add_distinct_node function, the system fails to properly validate or sanitize the input parameters, leading to a condition where the database engine becomes unresponsive or crashes. This behavior aligns with CWE-400 vulnerability classification, which covers unspecified denial of service conditions in software systems. The flaw essentially allows an attacker to craft SQL queries that cause the database engine to enter an infinite loop or consume excessive system resources, ultimately resulting in service unavailability.
The operational impact of this vulnerability extends beyond simple service disruption, as it can affect database availability and overall system reliability for organizations relying on virtuoso-opensource for their data management needs. Attackers can exploit this weakness to perform sustained denial of service attacks against database servers, potentially causing cascading failures in applications that depend on these database services. The vulnerability affects the core database engine functionality and can impact any application that utilizes the distinct node processing capabilities within the virtuoso-opensource framework. From an attack perspective, this vulnerability maps to ATT&CK technique T1499.004 which covers network denial of service attacks, and T1566.001 which involves social engineering through spearphishing, as attackers may craft specific SQL payloads to exploit this condition.
Mitigation strategies for CVE-2024-57656 should prioritize immediate patching of the affected virtuoso-opensource version to the latest available release that contains the necessary security fixes. Organizations should implement input validation controls and query monitoring to detect potentially malicious SQL statements before they can trigger the vulnerability. Network segmentation and access controls can help limit the exposure of database systems to untrusted inputs while implementing proper logging and alerting mechanisms to detect exploitation attempts. Additionally, database administrators should consider implementing query execution limits and resource constraints to prevent malicious queries from consuming excessive system resources, providing an additional layer of protection against this specific denial of service condition.