A vulnerability in the Layer 2 punt code of Cisco IOS XR Software running on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to cause the affected line card to reboot. This vulnerability is due to incorrect handling of specific Ethernet frames that cause a spin loop that can make the network processors unresponsive. An attacker could exploit this vulnerability by sending specific types of Ethernet frames on the segment where the affected line cards are attached. A successful exploit could allow the attacker to cause the affected line card to reboot.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2021-09-09T05:00:33.935977Z

Updated: 2024-09-16T17:18:06.175Z

Reserved: 2021-06-15T00:00:00

Link: CVE-2021-34713

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-09-09T05:15:10.810

Modified: 2023-11-07T03:36:10.237

Link: CVE-2021-34713

cve-icon Redhat

No data.