CVE-2019-8811 Memory corruption in Safari

High 8.8 Published Updated

Processing maliciously crafted web content may lead to arbitrary code execution via memory corruption in Apple operating systems and browsers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2019-8811?

CVE-2019-8811 is a high-severity memory corruption vulnerability in Apple Icloud, published on 18 Dec 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13.2 and iPadOS 13.2, tvOS 13.2, watchOS 6.1, Safari 13.0.3, iTunes for Windows 12.10.2, iCloud for Windows 11.0, iCloud for Windows 7.15. Processing maliciously crafted web content may lead to arbitrary code execution.

Weakness: CWE-787

Which versions are affected by CVE-2019-8811?

It affects 7 products.

Products include Apple Icloud, Apple Ipados, Apple Iphone Os, Apple Itunes, Apple Safari, Apple Tvos and 1 more.

How do I fix CVE-2019-8811?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2019-8811 being exploited?

There is no known exploitation of CVE-2019-8811 in the wild and no public exploit code.

All Apple Icloud vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-8811, GHSA-4fc2-7qm9-mmc9, UBUNTU-CVE-2019-8811.

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