A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2023-09-27T17:19:44.488Z

Updated: 2024-08-02T09:05:36.976Z

Reserved: 2022-10-27T18:47:50.364Z

Link: CVE-2023-20187

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-09-27T18:15:11.117

Modified: 2024-11-21T07:40:46.903

Link: CVE-2023-20187

cve-icon Redhat

No data.