CVE-2017-6227 Denial of service in Brocade FABRIC OS

Medium 6.5 Published Updated

An attacker can cause a denial of service by sending crafted Router Advertisement messages to Brocade Fibre Channel SAN products.

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-2017-6227?

CVE-2017-6227 is a medium-severity denial of service vulnerability in Broadcom Fabric Operating System, published on 8 Feb 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 IPv6 stack on Brocade Fibre Channel SAN products running Brocade Fabric OS (FOS) versions before 7.4.2b, 8.1.2 and 8.2.0 could allow an attacker to cause a denial of service (CPU consumption and device hang) condition by sending crafted Router Advertisement (RA) messages to a targeted system.

Which versions are affected by CVE-2017-6227?

It affects 2 products.

Products include Broadcom Fabric Operating System, Brocade Fabric Os.

How do I fix CVE-2017-6227?

No fix has been published for CVE-2017-6227 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-2017-6227 being exploited?

There is no known exploitation of CVE-2017-6227 in the wild and no public exploit code.

All Broadcom Fabric Operating System vulnerabilities

Sources

Also known as GHSA-hm6f-vf78-gxhc.

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