CVE-2020-3317 MEDIUM

CVE-2020-3317: Cisco Firepower Threat Defense Software SSL Input Validation Denial of Service Vulnerability

Vendor Cisco
Product Cisco Firepower Threat Defense Software
Weakness CWE-20 · Input validation
Published October 21, 2020
Last update November 13, 2024

CVSS base score

5.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

What the vulnerability does

01Description

A vulnerability in the ssl_inspection component of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to crash Snort instances. The vulnerability is due to insufficient input validation in the ssl_inspection component. An attacker could exploit this vulnerability by sending a malformed TLS packet through a Cisco Adaptive Security Appliance (ASA). A successful exploit could allow the attacker to crash a Snort instance, resulting in a denial of service (DoS) condition.

Key dates

02Disclosure timeline

October 21, 2020 CVE published
November 13, 2024 Record updated