CVE-2018-0456: cisco cisco nx-os software for nexus 3000 series 7.0(3)i7(3) Improper Input Validation

Vulnerability summary

CVE-2018-0456 is a high (CVSS 7.7) Improper Input Validation vulnerability in cisco cisco nx-os software for nexus 3000 series 7.0(3)i7(3). EPSS estimates a 3.17% chance of exploitation in the next 30 days, higher than 87.8% of scored vulnerabilities.

Timeline

1. 17-10-2018
   PublishedVulnerability first disclosed.
2. 26-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco NX-OS Software could allow an authenticated, remote attacker to cause the SNMP application of an affected device to restart unexpectedly. The vulnerability is due to improper validation of SNMP protocol data units (PDUs) in SNMP packets. An attacker could exploit this vulnerability by sending a crafted SNMP packet to an affected device. A successful exploit could allow the attacker to cause the SNMP application to restart multiple times, leading to a system-level restart and a denial of service (DoS) condition.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.