CVE-2020-9919 Memory corruption in iCloud for Windows

High 7.8 Published Updated

Processing a maliciously crafted image can lead to arbitrary code execution via a buffer overflow in Apple operating systems and applications.

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-2020-9919?

CVE-2020-9919 is a high-severity memory corruption vulnerability in Apple Icloud, published on 22 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 buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, iCloud for Windows 7.20. Processing a maliciously crafted image may lead to arbitrary code execution.

Weakness: CWE-787

Which versions are affected by CVE-2020-9919?

It affects 7 products.

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

How do I fix CVE-2020-9919?

No fix has been published for CVE-2020-9919 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2020-9919 being exploited?

There is no known exploitation of CVE-2020-9919 in the wild and no public exploit code.

All Apple Icloud vulnerabilities

Sources

Also known as GHSA-2fg5-gcxh-rpwm.

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