CVE-2020-7464

Published: Mar 26, 2021Modified: Jun 17, 2026

5.3

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Exploitability: 3.9 / Impact: 1.4

Source: NVD

Description

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.

Affected (29)

Products: Freebsd: Freebsd

Freebsd

1 product

Freebsd

Configuration A

29 vulnerable

Vulnerable Software	Affected Versions
Freebsd Freebsd	Version 11.3
Freebsd Freebsd	Version 11.3 p10
Freebsd Freebsd	Version 11.3 p11
Freebsd Freebsd	Version 11.3 p12
Freebsd Freebsd	Version 11.3 p13
Freebsd Freebsd	Version 11.3 p1
Freebsd Freebsd	Version 11.3 p2
Freebsd Freebsd	Version 11.3 p3
Freebsd Freebsd	Version 11.3 p4
Freebsd Freebsd	Version 11.3 p5
Freebsd Freebsd	Version 11.3 p6
Freebsd Freebsd	Version 11.3 p7
Freebsd Freebsd	Version 11.3 p8
Freebsd Freebsd	Version 11.3 p9
Freebsd Freebsd	Version 11.4
Freebsd Freebsd	Version 11.4 p1
Freebsd Freebsd	Version 11.4 p2
Freebsd Freebsd	Version 11.4 p3
Freebsd Freebsd	Version 12.1
Freebsd Freebsd	Version 12.1 p1
Freebsd Freebsd	Version 12.1 p2
Freebsd Freebsd	Version 12.1 p3
Freebsd Freebsd	Version 12.1 p4
Freebsd Freebsd	Version 12.1 p5
Freebsd Freebsd	Version 12.1 p6
Freebsd Freebsd	Version 12.1 p7
Freebsd Freebsd	Version 12.1 p8
Freebsd Freebsd	Version 12.1 p9
Freebsd Freebsd	Version 12.2

Related CWEs

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

References (2)

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:27.ure.asc

Source: secteam@freebsd.org

Vendor Advisory

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:27.ure.asc

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.