Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2020-3191

A vulnerability in DNS over IPv6 packet processing for Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to unexpectedly reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper length validation of a field in an IPv6 DNS packet. An attacker could exploit this vulnerability by sending a crafted DNS query over IPv6, which traverses the affected device. An exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. This vulnerability is specific to DNS over IPv6 traffic only.

  • Published: May 6, 2020
  • Updated: Apr 14, 2023
  • CVE: CVE-2020-3191
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.6
  • AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
cisco / firepower_threat_defense 6.4.0 6.4.0.6
cisco / firepower_threat_defense 6.3.0 6.3.0.6
cisco / firepower_threat_defense 6.2.3 6.2.3.16
cisco / asa_5505_firmware 9.4(1) 9.4(1).x
cisco / asa_5505_firmware 96.4(0.42) 96.4(0.42).x
cisco / asa_5510_firmware 9.4(1) 9.4(1).x
cisco / asa_5510_firmware 96.4(0.42) 96.4(0.42).x
cisco / asa_5512-x_firmware 9.4(1) 9.4(1).x
cisco / asa_5512-x_firmware 96.4(0.42) 96.4(0.42).x
cisco / asa_5515-x_firmware 9.4(1) 9.4(1).x
cisco / asa_5515-x_firmware 96.4(0.42) 96.4(0.42).x
cisco / asa_5520_firmware 9.4(1) 9.4(1).x
cisco / asa_5520_firmware 96.4(0.42) 96.4(0.42).x
cisco / asa_5525-x_firmware 9.4(1) 9.4(1).x
cisco / asa_5525-x_firmware 96.4(0.42) 96.4(0.42).x
cisco / asa_5540_firmware 9.4(1) 9.4(1).x
cisco / asa_5540_firmware 96.4(0.42) 96.4(0.42).x
cisco / asa_5545-x_firmware 9.4(1) 9.4(1).x
cisco / asa_5545-x_firmware 96.4(0.42) 96.4(0.42).x
cisco / asa_5550_firmware 9.4(1) 9.4(1).x
cisco / asa_5550_firmware 96.4(0.42) 96.4(0.42).x
cisco / asa_5555-x_firmware 9.4(1) 9.4(1).x
cisco / asa_5555-x_firmware 96.4(0.42) 96.4(0.42).x
cisco / asa_5580_firmware 9.4(1) 9.4(1).x
cisco / asa_5580_firmware 96.4(0.42) 96.4(0.42).x
cisco / asa_5585-x_firmware 9.4(1) 9.4(1).x
cisco / asa_5585-x_firmware 96.4(0.42) 96.4(0.42).x
cisco / adaptive_security_appliance_software 9.9 9.9.2.66
cisco / adaptive_security_appliance_software 9.8 9.8.4.12
cisco / adaptive_security_appliance_software 9.6 9.6.4.36
cisco / adaptive_security_appliance_software 9.10 9.10.1.37
cisco / adaptive_security_appliance_software 9.12 9.12.2.9