CVE-2020-3119: cisco cisco unified computing system (managed) Out-of-bounds Write

Vulnerability summary

CVE-2020-3119 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in cisco cisco unified computing system (managed). EPSS estimates a 4.78% chance of exploitation in the next 30 days, higher than 91.8% of scored vulnerabilities.

Timeline

1. 05-02-2020
   PublishedVulnerability first disclosed.
2. 15-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the Cisco Discovery Protocol implementation for Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device. The vulnerability exists because the Cisco Discovery Protocol parser does not properly validate input for certain fields in a Cisco Discovery Protocol message. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. An successful exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges on an affected device. 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).

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.