A vulnerability in the Cisco Discovery Protocol implementation for Cisco FXOS Software, Cisco IOS XR Software, and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to a missing check when the affected software processes Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to exhaust system memory, causing the device to reload. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2020-02-05T17:50:18.427416Z

Updated: 2024-09-17T00:10:55.655Z

Reserved: 2019-12-12T00:00:00

Link: CVE-2020-3120

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2020-02-05T18:15:11.063

Modified: 2023-04-20T15:27:48.130

Link: CVE-2020-3120

cve-icon Redhat

No data.