CVE-2016-4639 Denial of service in n/a

High 7.0 Published Updated

Local attackers can cause a denial of service in the macOS Login Window due to improper memory initialization.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2016-4639?

CVE-2016-4639 is a high-severity denial of service vulnerability in Apple Mac Os X, published on 22 Jul 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Login Window in Apple OS X before 10.11.6 does not properly initialize memory, which allows local users to cause a denial of service via unspecified vectors.

Which versions are affected by CVE-2016-4639?

It affects 1 product.

Products include Apple Mac Os X.

How do I fix CVE-2016-4639?

No fix has been published for CVE-2016-4639 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-2016-4639 being exploited?

There is no known exploitation of CVE-2016-4639 in the wild and no public exploit code.

All Apple Mac Os X vulnerabilities

Sources

Also known as GHSA-9q7j-mcc2-2993.

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