CVE-2018-0170 Information

Description

A vulnerability in the Cisco Umbrella Integration feature of Cisco IOS XE Software could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition related to the OpenDNS software. The vulnerability is due to a logic error that exists when handling a malformed incoming packet leading to access to an internal data structure after it has been freed. An attacker could exploit this vulnerability by sending crafted malformed IP packets to an affected device. A successful exploit could allow the attacker to cause an affected device to reload resulting in a DoS condition. Cisco Bug IDs: CSCvb86327.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/103560 http://www.securitytracker.com/id/1040590 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-opendns-dos

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5