Vulnerability Information
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Vulnerability Title
Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability
Vulnerability Description
A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in one or more leaf switches being removed from the fabric. This vulnerability is due to mishandling of ingress TCP traffic to a specific port. An attacker could exploit this vulnerability by sending a stream of TCP packets to a specific port on a Switched Virtual Interface (SVI) configured on the device. A successful exploit could allow the attacker to cause a specific packet queue to queue network buffers but never process them, leading to an eventual queue wedge. This could cause control plane traffic to be dropped, resulting in a denial of service (DoS) condition where the leaf switches are unavailable. Note: This vulnerability requires a manual intervention to power-cycle the device to recover.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Vulnerability Type
对已超过有效生命周期的资源丧失索引
Vulnerability Title
Cisco Nexus 9000 Series Fabric Switches 输入验证错误漏洞
Vulnerability Description
Cisco Nexus 9000 Series Fabric Switches是美国思科（Cisco）公司的一款9000系列光纤交换机。 Cisco Nexus 9000 Series Fabric Switches 中存在输入验证错误漏洞，该漏洞源于产品对特定端口的TCP流量处理不当。攻击者可通过向交换机的 Switched Virtual Interface 端口发送特质数据包引发漏洞。
CVSS Information
N/A
Vulnerability Type
N/A