CVE-2019-3644 MWG scanners updated to address CVE-2019-9517

High 7.5 Published Updated

Remote attackers can cause a denial of service in McAfee Web Gateway scanning proxies by exploiting CVE-2019-9517.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-3644?

CVE-2019-3644 is a high-severity denial of service vulnerability in McAfee, LLC McAfee Web Gateway (MWG), published on 11 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

McAfee Web Gateway (MWG) earlier than 7.8.2.13 is vulnerable to a remote attacker exploiting CVE-2019-9517, potentially leading to a denial of service. This affects the scanning proxies.

Which versions are affected by CVE-2019-3644?

It affects 4 products.

Products include Mcafee Active Response, Mcafee Advanced Threat Defense, Mcafee Enterprise Security Manager, Mcafee Web Gateway.

How do I fix CVE-2019-3644?

No fix has been published for CVE-2019-3644 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-2019-3644 being exploited?

There is no known exploitation of CVE-2019-3644 in the wild and no public exploit code.

Sources

Also known as GHSA-94m5-m65q-7w34.

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