CVE-2018-4381 Denial of service in iOS

Medium 5.5 Published Updated

Attackers can cause a denial of service on Apple iOS and tvOS devices by processing a maliciously crafted message.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2018-4381?

CVE-2018-4381 is a medium-severity denial of service vulnerability in Apple Iphone Os, published on 27 Oct 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A resource exhaustion issue was addressed with improved input validation. This issue is fixed in tvOS 12.1, iOS 12.1. Processing a maliciously crafted message may lead to a denial of service.

Weakness: CWE-400

Which versions are affected by CVE-2018-4381?

It affects 2 products.

Products include Apple Iphone Os, Apple Tvos.

How do I fix CVE-2018-4381?

No fix has been published for CVE-2018-4381 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-2018-4381 being exploited?

There is no known exploitation of CVE-2018-4381 in the wild and no public exploit code.

All Apple Iphone Os vulnerabilities

Sources

Also known as GHSA-fhhr-6q8c-w2wf.

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