Published: 28/03/2018 Updated: 03/12/2019

CVSS v2 Base Score: 7.8 | Impact Score: 6.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 694

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

A vulnerability in the Cisco Umbrella Integration feature of Cisco IOS XE Software could allow an unauthenticated, remote malicious user 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 malicious user to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvb86327.

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cisco ios xe 16.4.1

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 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 ...

CWE-416 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-opendns-dos http://www.securitytracker.com/id/1040590 http://www.securityfocus.com/bid/103560 https://nvd.nist.gov https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-opendns-dos

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CVE-2018-0170

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