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.
Metrics
No CVSS v4.0
Attack Vector Network
Attack Complexity Low
Privileges Required None
Scope Changed
Confidentiality Impact None
Integrity Impact None
Availability Impact High
User Interaction None
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
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Cisco |
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Configuration 1 [-]
AND |
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No data.
References
History
No history.
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
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-09-27T18:15:11.117
Modified: 2024-11-21T07:40:46.903
Link: CVE-2023-20187
Redhat
No data.