Cisco Catalyst 4000 Series Switches TCP Denial of Service Vulnerability

A vulnerability in the ingress packet processing function of Cisco IOS Software for Cisco Catalyst 4000 Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper resource allocation when processing TCP packets directed to the device on specific Cisco Catalyst 4000 Series Switches. An attacker could exploit this vulnerability by sending crafted TCP streams to an affected device. A successful exploit could cause the affected device to run out of buffer resources, impairing operations of control plane and management plane protocols, resulting in a DoS condition. This vulnerability can be triggered only by traffic that is destined to an affected device and cannot be exploited using traffic that transits an affected device.

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资源管理错误

多款Cisco产品IOS 资源管理错误漏洞

多款Cisco产品中的IOS Software的输入数据包处理功能存在资源管理错误漏洞，该漏洞源于在处理TCP数据包时，程序进行了不正确的资源分配。远程攻击者可通过向受影响的设备发送特制的TCP流利用该漏洞造成拒绝服务。以下产品及版本受到影响：Cisco Catalyst 4500 Supervisor Engine 6-E；Catalyst 4500 Supervisor Engine 6L-E；Catalyst 4900M Switch；Catalyst 4948E Ethernet Switch；C

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