CVE-2025-45331 in brplot
Summary
by MITRE • 06/20/2025
brplot v420.69.1 contains a Null Pointer Dereference (NPD) vulnerability in the br_dagens_handle_once function of its data processing module, leading to unpredictable program behavior, causing segmentation faults, and program crashes.
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Analysis
by VulDB Data Team • 10/23/2025
The vulnerability identified as CVE-2025-45331 affects brplot version 420.69.1 and represents a critical null pointer dereference flaw within the br_dagens_handle_once function of the application's data processing module. This type of vulnerability falls under the Common Weakness Enumeration category CWE-476 which specifically addresses null pointer dereference conditions that can lead to application instability and potential system compromise. The vulnerability manifests when the application attempts to access memory through a null pointer reference during data processing operations, creating an unpredictable execution state that can result in immediate program termination.
The technical implementation of this flaw occurs within the br_dagens_handle_once function where the software fails to properly validate pointer references before attempting to dereference them. This function processes incoming data streams and appears to lack adequate null checks for critical data structures or buffer pointers that may not have been initialized or properly allocated. When malicious or malformed input data is processed through this function, the application encounters a scenario where it attempts to execute operations on a null pointer, causing the program to crash with a segmentation fault or access violation error. The vulnerability is particularly concerning because it can be triggered through normal data processing workflows without requiring special privileges or complex attack vectors.
From an operational perspective, this null pointer dereference vulnerability presents significant risks to system availability and data integrity within environments that rely on brplot for data visualization and analysis tasks. The unpredictable nature of the crash means that system administrators cannot reliably predict when the application will fail, potentially leading to data loss or service interruptions during critical processing periods. The segmentation faults generated by this vulnerability can also provide attackers with information about the application's memory layout and internal structure, which may aid in developing more sophisticated exploitation techniques. Additionally, the crash behavior can be leveraged to create denial of service conditions that can impact multiple users or systems dependent on the affected application.
Mitigation strategies for CVE-2025-45331 should focus on immediate code-level fixes including implementing comprehensive null pointer validation checks within the br_dagens_handle_once function before any pointer dereference operations occur. Security teams should also consider implementing input validation mechanisms that can detect and reject malformed data before it reaches the vulnerable function. The application should be updated to a patched version that addresses the null pointer dereference condition, and system administrators should monitor for any signs of exploitation attempts or system instability following remediation efforts. Additionally, implementing proper error handling and graceful degradation mechanisms can help prevent complete application crashes and maintain system availability during unexpected processing scenarios. Organizations utilizing brplot should also consider implementing application sandboxing or containerization techniques to limit the potential impact of any remaining vulnerabilities.