Input validation error in Cisco Adaptive Security Appliance (ASA) and Cisco Firewall Threat Defense (FTD) - CVE-2020-3191

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Main Vulnerability Database Vulnerabilities #VU27594

Input validation error in Cisco Adaptive Security Appliance (ASA) and Cisco Firewall Threat Defense (FTD) - CVE-2020-3191

Published: May 7, 2020 / Updated: May 7, 2020


Vulnerability identifier: #VU27594
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-3191
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco Adaptive Security Appliance (ASA)
Cisco Firewall Threat Defense (FTD)
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper length validation of a field in an IPv6 DNS packet. A remote attacker can send a specially crafted DNS query over IPv6 and perform a denial of service (DoS) attack.


Remediation

Install updarom vendor's website.

External links