CVE-2018-0466 Cisco IOS and IOS XE Software OSPFv3 Denial of Service Vulnerability

Medium 6.5 Published 5 Oct 2018 Updated 26 Nov 2024

An unauthenticated adjacent attacker can cause a Cisco IOS device to reload by sending crafted OSPFv3 packets, resulting in a denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-0466?

CVE-2018-0466 is a medium-severity denial of service vulnerability in Cisco Ios, published on 5 Oct 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the Open Shortest Path First version 3 (OSPFv3) implementation in Cisco IOS and IOS XE Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload. The vulnerability is due to incorrect handling of specific OSPFv3 packets. An attacker could exploit this vulnerability by sending crafted OSPFv3 Link-State Advertisements (LSA) to an affected device. An exploit could allow the attacker to cause an affected device to reload, leading to a denial of service (DoS) condition.

Weakness: CWE-399

Which versions are affected by CVE-2018-0466?

It affects 2 products.

Products include Cisco Ios, Cisco Ios Xe.

How do I fix CVE-2018-0466?

No fix has been published for CVE-2018-0466 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2018-0466 being exploited?

There is no known exploitation of CVE-2018-0466 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-hjq6-pmw4-93ph.