A vulnerability in the Layer 2 punt code of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a queue wedge on an interface that receives specific Layer 2 frames, resulting in a denial of service (DoS) condition. This vulnerability is due to improper handling of certain Layer 2 frames. An attacker could exploit this vulnerability by sending specific Layer 2 frames on the segment the router is connected to. A successful exploit could allow the attacker to cause a queue wedge on the interface, resulting in a DoS condition.
References
Link | Resource |
---|---|
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-quewedge-69BsHUBW | Patch Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: cisco
Published: 2021-09-22T00:00:00
Updated: 2021-09-23T02:31:07
Reserved: 2020-11-13T00:00:00
Link: CVE-2021-1621
JSON object: View
NVD Information
Status : Modified
Published: 2021-09-23T03:15:13.210
Modified: 2023-11-07T03:28:48.647
Link: CVE-2021-1621
JSON object: View
Redhat Information
No data.