CVE-2021-30758 Memory corruption in iOS
Attackers can execute arbitrary code by tricking users into visiting malicious web content on Apple devices.
- 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-2021-30758?
CVE-2021-30758 is a high-severity memory corruption vulnerability in Apple Iphone Os, published on 8 Sep 2021. 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
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 14.7, Safari 14.1.2, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7. Processing maliciously crafted web content may lead to arbitrary code execution.
Weakness: CWE-843
Which versions are affected by CVE-2021-30758?
It affects 5 products.
Products include Apple Iphone Os, Apple Macos, Apple Safari, Apple Tvos, Apple Watchos.
How do I fix CVE-2021-30758?
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-2021-30758 being exploited?
There is no known exploitation of CVE-2021-30758 in the wild and no public exploit code.
Other vulnerabilities in Apple Iphone Os
Sources
Also known as DEBIAN-CVE-2021-30758, GHSA-7qcx-m2gc-9659, UBUNTU-CVE-2021-30758.