CVE-2018-0467: Cisco IOS and IOS XE Software IPv6 Hop-by-Hop Options Denial of Service Vulnerability

Published Oct 5, 2018

Updated

A vulnerability in the IPv6 processing code of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload. The vulnerability is due to incorrect handling of specific IPv6 hop-by-hop options. An attacker could exploit this vulnerability by sending a malicious IPv6 packet to or through the affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition on an affected device.

Affected Software

3 affected components

Cisco IOS XE=15.6\(2\)sp

Cisco IOS XE=16.6.1

Cisco IOS XE=everest-16.6.1

Event History

Oct 5, 2018

CVE Published

via MITRE·02:00 PM

Data Sourced

via MITRE·02:00 PM

DescriptionWeakness

Frequently Asked Questions

What is the severity of CVE-2018-0467?

CVE-2018-0467 is considered a high severity vulnerability that could lead to device reloads.

How do I fix CVE-2018-0467?

To fix CVE-2018-0467, upgrade to the latest patched version of Cisco IOS or IOS XE software.

What impact does CVE-2018-0467 have on my network?

CVE-2018-0467 allows an unauthenticated remote attacker to cause affected devices to reload, disrupting network services.

Which versions of Cisco IOS and IOS XE are affected by CVE-2018-0467?

CVE-2018-0467 affects specific versions of Cisco IOS XE including 15.6(2)SP and 16.6.1.

Is there a workaround for CVE-2018-0467?

No specific workarounds are documented for CVE-2018-0467; the recommended action is to apply the security updates.