CVE-2018-0170: Use After Free

Published Mar 28, 2018

Updated

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.

Affected Software

1 affected component

Cisco IOS XE=16.4.1

Event History

Mar 28, 2018

CVE Published

via MITRE·10:00 PM

Data Sourced

via MITRE·10:00 PM

DescriptionWeakness

Frequently Asked Questions

What is the severity of CVE-2018-0170?

CVE-2018-0170 has a severity rating that indicates it can lead to a denial of service condition.

How do I fix CVE-2018-0170?

To fix CVE-2018-0170, users should upgrade to the latest version of Cisco IOS XE Software that addresses this vulnerability.

Can CVE-2018-0170 be exploited remotely?

Yes, CVE-2018-0170 can be exploited by an unauthenticated remote attacker.

What software versions are affected by CVE-2018-0170?

CVE-2018-0170 specifically affects Cisco IOS XE Software version 16.4.1.

What kind of attack can CVE-2018-0170 facilitate?

CVE-2018-0170 can facilitate a denial of service (DoS) attack against the affected systems.