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.
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History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: freebsd

Published: 2021-03-26T20:55:25

Updated: 2021-03-26T20:55:25

Reserved: 2020-01-21T00:00:00


Link: CVE-2020-7464

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2021-03-26T21:15:13.257

Modified: 2021-04-01T17:22:03.717


Link: CVE-2020-7464

JSON object: View

cve-icon Redhat Information

No data.

CWE