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[email protected]CVE-2020-3191

HistoryMay 06, 2020 - 5:15 p.m.

CVE-2020-3191

2020-05-0617:15:12

CWE-20

[email protected]

web.nvd.nist.gov

cisco

asa

ftd

software

dns

ipv6

dos

vulnerability

nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

8.3 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.8%

JSON

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.

Affected configurations

NVD

Node

ciscofirepower_threat_defenseRange6.2.3–6.2.3.16

ciscofirepower_threat_defenseRange6.3.0–6.3.0.6

ciscofirepower_threat_defenseRange6.4.0–6.4.0.6

Node

ciscoasa_5505_firmwareMatch9.4\(1\)

ciscoasa_5505_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5505Match-

Node

ciscoasa_5510_firmwareMatch9.4\(1\)

ciscoasa_5510_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5510Match-

Node

ciscoasa_5512-x_firmwareMatch9.4\(1\)

ciscoasa_5512-x_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5512-xMatch-

Node

ciscoasa_5515-x_firmwareMatch9.4\(1\)

ciscoasa_5515-x_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5515-xMatch-

Node

ciscoasa_5520_firmwareMatch9.4\(1\)

ciscoasa_5520_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5520Match-

Node

ciscoasa_5525-x_firmwareMatch9.4\(1\)

ciscoasa_5525-x_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5525-xMatch-

Node

ciscoasa_5540_firmwareMatch9.4\(1\)

ciscoasa_5540_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5540Match-

Node

ciscoasa_5545-x_firmwareMatch9.4\(1\)

ciscoasa_5545-x_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5545-xMatch-

Node

ciscoasa_5550_firmwareMatch9.4\(1\)

ciscoasa_5550_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5550Match-

Node

ciscoasa_5555-x_firmwareMatch9.4\(1\)

ciscoasa_5555-x_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5555-xMatch-

Node

ciscoasa_5580_firmwareMatch9.4\(1\)

ciscoasa_5580_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5580Match-

Node

ciscoasa_5585-x_firmwareMatch9.4\(1\)

ciscoasa_5585-x_firmwareMatch96.4\(0.42\)

AND

ciscoasa_5585-xMatch-

Node

ciscoadaptive_security_appliance_softwareRange9.6–9.6.4.36

ciscoadaptive_security_appliance_softwareRange9.8–9.8.4.12

ciscoadaptive_security_appliance_softwareRange9.9–9.9.2.66

ciscoadaptive_security_appliance_softwareRange9.10–9.10.1.37

ciscoadaptive_security_appliance_softwareRange9.12–9.12.2.9

CPENameOperatorVersion
cisco:firepower_threat_defensecisco firepower threat defenselt6.2.3.16
cisco:firepower_threat_defensecisco firepower threat defenselt6.3.0.6
cisco:firepower_threat_defensecisco firepower threat defenselt6.4.0.6

CPE	Name	Operator	Version
cisco:firepower_threat_defense	cisco firepower threat defense	lt	6.2.3.16
cisco:firepower_threat_defense	cisco firepower threat defense	lt	6.3.0.6
cisco:firepower_threat_defense	cisco firepower threat defense	lt	6.4.0.6

CNA Affected

[
  {
    "product": "Cisco Adaptive Security Appliance (ASA) Software ",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ipv6-67pA658k

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

8.3 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.8%

JSON

Related for CVE-2020-3191

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