CVE-2020-3571: cisco cisco firepower threat defense software Uncontrolled Resource Consumption

Vulnerability summary

CVE-2020-3571 is a high (CVSS 8.6) Uncontrolled Resource Consumption vulnerability in cisco cisco firepower threat defense software. EPSS estimates a 1.39% chance of exploitation in the next 30 days, higher than 71.8% of scored vulnerabilities.

Timeline

1. 21-10-2020
   PublishedVulnerability first disclosed.
2. 13-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 4110 appliances could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation upon receiving ICMP packets. An attacker could exploit this vulnerability by sending a high number of crafted ICMP or ICMPv6 packets to an affected device. A successful exploit could allow the attacker to cause a memory exhaustion condition that may result in an unexpected reload. No manual intervention is needed to recover the device after the reload.

• CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
• 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.