CVE-2024-57642 is a vulnerability identified in the dfe_inx_op_col_def_table component of OpenLink Virtuoso OpenSource version 7.2.11, a widely used hybrid database and application server platform. The flaw arises from improper sanitization or validation of SQL input, allowing attackers to craft malicious SQL statements that trigger a Denial of Service (DoS) condition. This vulnerability falls under CWE-89, indicating it is related to SQL Injection, but unlike typical injection flaws that lead to data compromise, this one primarily impacts availability by causing the database service to crash or become unresponsive. The attack vector is network-based (AV:N), requiring no privileges (PR:N) or user interaction (UI:N), making it relatively easy to exploit remotely. The CVSS v3.1 base score is 7.5, reflecting high severity due to the ease of exploitation and the significant impact on availability. No patches or fixes have been released at the time of publication, and no active exploitation has been observed. The vulnerability affects the open-source version 7.2.11 of Virtuoso, but the exact range of affected versions is not specified. The absence of authentication requirements and user interaction increases the risk profile, especially for publicly accessible database instances.

The primary impact of CVE-2024-57642 is the disruption of database availability, which can lead to denial of service for applications and services relying on OpenLink Virtuoso OpenSource 7.2.11. This can affect business continuity, cause downtime, and potentially lead to financial losses and reputational damage. Organizations using Virtuoso as a backend for critical applications, data analytics, or linked data services may experience interruptions in service delivery. Since the vulnerability does not compromise confidentiality or integrity directly, data theft or manipulation is not the immediate concern; however, prolonged outages can indirectly affect data reliability and operational trust. The ease of exploitation without authentication means that attackers can launch DoS attacks from remote locations, increasing the threat surface. The lack of known exploits in the wild currently provides a window for organizations to prepare defenses before active attacks emerge.

To mitigate CVE-2024-57642, organizations should immediately restrict network access to Virtuoso database instances, ensuring they are not publicly accessible unless absolutely necessary. Employ network-level controls such as firewalls and VPNs to limit exposure. Monitor database logs and network traffic for anomalous or unusually crafted SQL queries that could indicate exploitation attempts. Implement rate limiting or query throttling if supported by the platform to reduce the risk of DoS conditions. Stay informed on vendor advisories and apply patches or updates as soon as they become available. Consider deploying Web Application Firewalls (WAFs) or database activity monitoring tools that can detect and block SQL injection patterns. Additionally, conduct regular security assessments and penetration tests focused on database components to identify and remediate similar injection vulnerabilities proactively.