Vulnerability Monitor

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CVE-2020-7464

In FreeBSD 12.2-STABLE before r365730, 11.4-STABLE before r365738, 12.1-RELEASE before p10, 11.4-RELEASE before p4, and 11.3-RELEASE before p14, a programming error in the ure(4) device driver caused some Realtek USB Ethernet interfaces to incorrectly report packets with more than 2048 bytes in a single USB transfer as having a length of only 2048 bytes. An adversary can exploit this to cause the driver to misinterpret part of the payload of a large packet as a separate packet, and thereby inject packets across security boundaries such as VLANs.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, 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 integrity, for affected systems. Impacting 1 product from freebsd organizations running these solutions should prioritize assessment and patching.

Historical Context

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.

Published

2021-03-26T21:15:13.257

Last Modified

2024-11-21T05:37:11.840

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-74
Affected Vendors & Products
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 11.3 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 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
References

How SecUtils Interprets This CVE

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.