In FreeBSD 12.1-STABLE before r365010, 11.4-STABLE before r365011, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, dhclient(8) fails to handle certain malformed input related to handling of DHCP option 119 resulting a heap overflow. The heap overflow could in principle be exploited to achieve remote code execution. The affected process runs with reduced privileges in a Capsicum sandbox, limiting the immediate impact of an exploit.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.3, 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 limited data confidentiality, limited integrity, and limited availability for affected systems. Impacting 5 products from freebsd, from siemens, from siemens and 2 others, 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.
2021-03-26T21:15:13.053
2024-11-21T05:37:11.450
Modified
CVSSv3.1: 7.3 (HIGH)
AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | Yes |
| Operating System | freebsd | freebsd | 11.3 | 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 | siemens | simatic_rf350m_firmware | * | Yes |
| Hardware | siemens | simatic_rf350m | - | No |
| Operating System | siemens | simatic_rf650m_firmware | * | Yes |
| Hardware | siemens | simatic_rf650m | - | No |
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.