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Cisco Nexus 1000v Application Virtual Switch Cisco Discovery Protocol Packet Processing Denial of Service Vulnerability

Information

Severity

Severity

Medium

Family

Family

CISCO

CVSSv2 Base

CVSSv2 Base

6.1

CVSSv2 Vector

CVSSv2 Vector

AV:A/AC:L/Au:N/C:N/I:N/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

3 years ago

Summary

A vulnerability in Cisco Discovery Protocol packet processing for the Cisco Nexus 1000v Application Virtual Switch (AVS) could allow an unauthenticated, remote attacker to cause the ESXi hypervisor to crash and display a purple diagnostic screen, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation of Cisco Discovery Protocol packets, which could result in a crash of the ESXi hypervisor due to an out-of-bound memory access. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to a targeted device. An exploit could allow the attacker to cause a DoS condition. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

See the referenced vendor advisory for a solution.

Common Vulnerabilities and Exposures (CVE)