CVE-2019-8820 Memory corruption in Safari
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-2019-8820?
CVE-2019-8820 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-2019-8820?
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-2019-8820?
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-2019-8820 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-8820 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Apple Icloud
Sources
Also known as DEBIAN-CVE-2019-8820, GHSA-6vqf-wwv4-9qqh, UBUNTU-CVE-2019-8820.