CVE-2021-30919 Memory corruption in iOS and iPadOS
Attackers can execute arbitrary code by tricking users into opening a maliciously crafted PDF on 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-2021-30919?
CVE-2021-30919 is a high-severity memory corruption vulnerability in Apple Ipad Os, published on 24 Aug 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
An out-of-bounds write was addressed with improved input validation. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. Processing a maliciously crafted PDF may lead to arbitrary code execution.
Weakness: CWE-787
Which versions are affected by CVE-2021-30919?
It affects 7 products.
Products include Apple Ipad Os, Apple Ipados, Apple Iphone Os, Apple Mac Os X, Apple Macos, Apple Tvos and 1 more.
How do I fix CVE-2021-30919?
No fix has been published for CVE-2021-30919 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-2021-30919 being exploited?
There is no known exploitation of CVE-2021-30919 in the wild and no public exploit code.