Overview
A high impact vulnerability, identified as CVE-2025-45331, has been discovered in the data processing module of brplot v420.69.1. This vulnerability, which is a Null Pointer Dereference (NPD) flaw, can lead to unpredictable program behavior, causing segmentation faults and program crashes. It is of significant concern because it could potentially result in system compromise or data leakage.
Vulnerability Summary
CVE ID: CVE-2025-45331
Severity: High (CVSS: 7.5)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
brplot | v420.69.1
How the Exploit Works
The vulnerability CVE-2025-45331 resides in the ‘br_dagens_handle_once’ function of the data processing module in brplot v420.69.1. An attacker exploiting this vulnerability can trigger a Null Pointer Dereference (NPD) error by supplying specific inputs. This will lead to segmentation faults and program crashes, and could potentially allow the attacker to execute arbitrary code or cause a denial of service.
Conceptual Example Code
A conceptual example of an exploit of the vulnerability might look like this:
#include <brplot.h>
int main() {
brplot_data data = NULL;
br_dagens_handle_once(data);
return 0;
}In this conceptual example, the brplot_data variable is intentionally set to NULL, and then passed to the vulnerable ‘br_dagens_handle_once’ function, causing a Null Pointer Dereference and potentially crashing the program.
Mitigation
Users are advised to apply the vendor patch as soon as it is available. Until then, the use of a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can offer temporary mitigation. These systems can be configured to detect and block attempts to exploit this vulnerability.
