In FreeBSD 12.2-STABLE before r368250, 11.4-STABLE before r368253, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 rtsold(8) does not verify that the RDNSS option does not extend past the end of the received packet before processing its contents. While the kernel currently ignores such malformed packets, it passes them to userspace programs. Any programs expecting the kernel to do validation may be vulnerable to an overflow.
This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from freebsd organizations running these solutions should prioritize assessment and patching.
Reported in 2021, 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.
2021-03-29T20:15:12.860
2024-11-21T05:18:09.407
Modified
CVSSv3.1: 9.8 (CRITICAL)
AV:N/AC:L/Au:N/C:C/I:C/A:C
10.0
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | freebsd | freebsd | 11.4 | Yes |
| Operating System | freebsd | freebsd | 11.4 | Yes |
| Operating System | freebsd | freebsd | 11.4 | Yes |
| Operating System | freebsd | freebsd | 11.4 | Yes |
| Operating System | freebsd | freebsd | 12.1 | Yes |
| Operating System | freebsd | freebsd | 12.1 | Yes |
| Operating System | freebsd | freebsd | 12.1 | Yes |
| Operating System | freebsd | freebsd | 12.1 | Yes |
| Operating System | freebsd | freebsd | 12.1 | Yes |
| Operating System | freebsd | freebsd | 12.1 | Yes |
| Operating System | freebsd | freebsd | 12.1 | Yes |
| Operating System | freebsd | freebsd | 12.1 | Yes |
| Operating System | freebsd | freebsd | 12.1 | Yes |
| Operating System | freebsd | freebsd | 12.1 | Yes |
| Operating System | freebsd | freebsd | 12.2 | 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.