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Cisco IOS-XR: CVE-2024-20318: Cisco IOS XR Software Layer 2 Services Denial of Service Vulnerability

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Cisco IOS-XR: CVE-2024-20318: Cisco IOS XR Software Layer 2 Services Denial of Service Vulnerability

Severity
6
CVSS
(AV:A/AC:L/Au:N/C:N/I:N/A:C)
Published
03/13/2024
Created
03/15/2024
Added
03/14/2024
Modified
06/17/2024

Description

A vulnerability in the Layer 2 Ethernet services of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause the line card network processor to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of specific Ethernet frames that are received on line cards that have the Layer 2 services feature enabled. An attacker could exploit this vulnerability by sending specific Ethernet frames through an affected device. A successful exploit could allow the attacker to cause the ingress interface network processor to reset, resulting in a loss of traffic over the interfaces that are supported by the network processor. Multiple resets of the network processor would cause the line card to reset, resulting in a DoS condition.

Solution(s)

  • update-xros

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