CVE-2019-8734 Memory corruption in Safari

High 8.8 Published Updated

Processing maliciously crafted web content may lead to arbitrary code execution in Apple Safari and related applications.

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
None listed

What is CVE-2019-8734?

CVE-2019-8734 is a high-severity memory corruption vulnerability in Apple Icloud, published on 27 Oct 2020. 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, iCloud for Windows 7.14, iCloud for Windows 10.7, Safari 13, tvOS 13, watchOS 6, iTunes 12.10.1 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.

Weakness: CWE-787

Which versions are affected by CVE-2019-8734?

It affects 6 products.

Products include Apple Icloud, Apple Iphone Os, Apple Itunes, Apple Safari, Apple Tvos, Apple Watchos.

How do I fix CVE-2019-8734?

No fix has been published for CVE-2019-8734 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-2019-8734 being exploited?

There is no known exploitation of CVE-2019-8734 in the wild and no public exploit code.

All Apple Icloud vulnerabilities

Sources

Also known as GHSA-xj76-4fp7-5jv7.

Is CVE-2019-8734 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free