CVE-2020-3191

CVSS V2 Medium 5 CVSS V3 High 8.6
Description
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.
Overview
  • CVE ID
  • CVE-2020-3191
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-05-06T17:15:12
  • Last Modified Date
  • 2021-08-12T18:21:03
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 1 OR 6.2.3 6.2.3.16
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 1 OR 6.3.0 6.3.0.6
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 1 OR 6.4.0 6.4.0.6
AND
cpe:2.3:o:cisco:asa_5505_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5505_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5510_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5510_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5510:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5512-x_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5512-x_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5515-x_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5515-x_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5520_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5520_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5520:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5525-x_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5525-x_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5540_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5540_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5540:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5545-x_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5545-x_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5550_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5550_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5550:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5555-x_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5555-x_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5580_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5580_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:asa_5585-x_firmware:9.4\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:asa_5585-x_firmware:96.4\(0.42\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* 1 OR 9.6 9.6.4.36
cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* 1 OR 9.8 9.8.4.12
cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* 1 OR 9.9 9.9.2.66
cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* 1 OR 9.10 9.10.1.37
cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* 1 OR 9.12 9.12.2.9
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 8.6
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 4
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ipv6-67pA658k Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-3191
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3191
History
Created Old Value New Value Data Type Notes
2022-05-10 06:57:28 Added to TrackCVE
2022-12-04 16:10:53 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-04 16:10:53 2020-05-06T17:15Z 2020-05-06T17:15:12 CVE Published Date updated
2022-12-04 16:10:53 2021-08-12T18:21:03 CVE Modified Date updated
2022-12-04 16:10:53 Analyzed Vulnerability Status updated