CVE-2019-8639 Memory corruption in Safari
Attackers can execute arbitrary code by tricking users into visiting malicious web content in Safari or other affected Apple software.
- 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-2019-8639?
CVE-2019-8639 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 watchOS 5.2, iCloud for Windows 7.11, iOS 12.2, iTunes 12.9.4 for Windows, Safari 12.1. Processing maliciously crafted web content may lead to arbitrary code execution.
Weakness: CWE-787
Which versions are affected by CVE-2019-8639?
It affects 5 products.
Products include Apple Icloud, Apple Iphone Os, Apple Itunes, Apple Safari, Apple Watchos.
How do I fix CVE-2019-8639?
No fix has been published for CVE-2019-8639 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-2019-8639 being exploited?
There is no known exploitation of CVE-2019-8639 in the wild and no public exploit code.
Other vulnerabilities in Apple Icloud
Sources
Also known as GHSA-8q4r-xrj3-2q8p.