漏洞类别：Cisco
漏洞等级： 
漏洞信息
A vulnerability in the handling of incoming Layer 2 packets tagged with a Cisco Nexus 9000 Series Switch (N9K) reserved VLAN number could allow an unauthenticated, adjacent attacker to cause a partial denial of service (DoS) condition due to increased CPU utilization and possible control plane instability. In addition, Layer 2 packets, which should be dropped by the switch, may be incorrectly forwarded to the connected interfaces.
The vulnerability is due to lack of validation of the VLAN number in the Layer 2 packet.
漏洞危害
An attacker could exploit this vulnerability by sending a crafted Layer 2 packet tagged with an N9K reserved VLAN number. An exploit could allow the attacker to cause a partial DoS condition due to increased CPU utilization and possible control plane instability. In addition, this packet should be dropped by the N9K, but could be forwarded to the attached networks.
解决方案
Refer to Cisco advisory Cisco-SA-20150916-CVE-2015-6295 for updates and patch information.
Patch:
Following are links for downloading patches to fix the vulnerabilities:
0day
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