CVE-2021-30776 Denial of service in Security Update - Catalina
Playing a malicious audio file causes unexpected application termination, requiring users to update their 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-2021-30776?
CVE-2021-30776 is a medium-severity denial of service vulnerability in Apple Iphone Os, published on 8 Sep 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 logic issue was addressed with improved validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-004 Catalina. Playing a malicious audio file may lead to an unexpected application termination.
Which versions are affected by CVE-2021-30776?
It affects 5 products.
Products include Apple Iphone Os, Apple Mac Os X, Apple Macos, Apple Tvos, Apple Watchos.
How do I fix CVE-2021-30776?
No fix has been published for CVE-2021-30776 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-30776 being exploited?
There is no known exploitation of CVE-2021-30776 in the wild and no public exploit code.
Other vulnerabilities in Apple Iphone Os
Sources
Also known as GHSA-wg3q-wx58-gfq6.