CVE-2020-9926 Use after free in iOS and iPadOS
Attackers can execute arbitrary code or cause denial of service via maliciously crafted XML due to a use-after-free vulnerability in Apple operating systems.
- 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-2020-9926?
CVE-2020-9926 is a high-severity use after free vulnerability in Apple Icloud, published on 2 Apr 2021. 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 use after free issue was addressed with improved memory management. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8, iCloud for Windows 7.20, macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.
Weakness: CWE-416
Which versions are affected by CVE-2020-9926?
It affects 6 products.
Products include Apple Icloud, Apple Ipados, Apple Iphone Os, Apple Mac Os X, Apple Tvos, Apple Watchos.
How do I fix CVE-2020-9926?
No fix has been published for CVE-2020-9926 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2020-9926 being exploited?
There is no known exploitation of CVE-2020-9926 in the wild and no public exploit code.
Other vulnerabilities in Apple Icloud
Sources
Also known as GHSA-q59g-53fj-p9fq.