When a program running on an affected system appends data to a file via an NFS client mount, the bug can cause the NFS client to fail to copy in the data to be written but proceed as though the copy operation had succeeded. This means that the data to be written is instead replaced with whatever data had been in the packet buffer previously. Thus, an unprivileged user with access to an affected system may abuse the bug to trigger disclosure of sensitive information. In particular, the leak is limited to data previously stored in mbufs, which are used for network transmission and reception, and for certain types of inter-process communication. The bug can also be triggered unintentionally by system applications, in which case the data written by the application to an NFS mount may be corrupted. Corrupted data is written over the network to the NFS server, and thus also susceptible to being snooped by other hosts on the network. Note that the bug exists only in the NFS client; the version and implementation of the server has no effect on whether a given system is affected by the problem.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 1 product from freebsd organizations running these solutions should prioritize assessment and patching.
Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2023-12-13T09:15:34.730
2024-11-21T08:44:18.720
Modified
CVSSv3.1: 6.5 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | freebsd | freebsd | 13.2 | Yes |
| Operating System | freebsd | freebsd | 13.2 | Yes |
| Operating System | freebsd | freebsd | 13.2 | Yes |
| Operating System | freebsd | freebsd | 13.2 | Yes |
| Operating System | freebsd | freebsd | 13.2 | Yes |
| Operating System | freebsd | freebsd | 13.2 | Yes |
| Operating System | freebsd | freebsd | 13.2 | Yes |
| Operating System | freebsd | freebsd | 13.2 | Yes |
| Operating System | freebsd | freebsd | 14.0 | Yes |
| Operating System | freebsd | freebsd | 14.0 | Yes |
| Operating System | freebsd | freebsd | 14.0 | Yes |
| Operating System | freebsd | freebsd | 14.0 | Yes |
| Operating System | freebsd | freebsd | 14.0 | Yes |
| Operating System | freebsd | freebsd | 14.0 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For freebsd's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.