CVE-2021-40117

Published Oct 27, 2021

Last updated 2 months ago

Overview

Description
A vulnerability in SSL/TLS message handler for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because incoming SSL/TLS packets are not properly processed. An attacker could exploit this vulnerability by sending a crafted SSL/TLS packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
Source
psirt@cisco.com
NVD status
Modified
Products
adaptive_security_appliance, secure_firewall_threat_defense, adaptive_security_appliance_software, asa_5512-x_firmware, asa_5505_firmware, asa_5515-x_firmware, asa_5525-x_firmware, asa_5545-x_firmware, asa_5555-x_firmware, asa_5580_firmware, asa_5585-x_firmware

Risk scores

CVSS 3.1

Type
Primary
Base score
7.5
Impact score
3.6
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity
HIGH

CVSS 2.0

Type
Primary
Base score
7.8
Impact score
6.9
Exploitability score
10
Vector string
AV:N/AC:L/Au:N/C:N/I:N/A:C

Weaknesses

psirt@cisco.com
CWE-119
nvd@nist.gov
CWE-400

Social media

Hype score
Not currently trending

Configurations