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.

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