The 802.1q VLAN protocol allows remote attackers to bypass network segmentation and spoof VLAN traffic via a message with two 802.1q tags, which causes the second tag to be redirected from a downstream switch after the first tag has been stripped, as demonstrated by Yersinia, aka "double-tagging VLAN jumping attack."
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2005-12-21T02:00:00

Updated: 2024-08-07T23:46:04.843Z

Reserved: 2005-12-21T00:00:00

Link: CVE-2005-4440

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2005-12-21T02:03:00.000

Modified: 2024-11-21T00:04:16.000

Link: CVE-2005-4440

cve-icon Redhat

No data.