CVE-2021-39665 Memory corruption in Android
A heap buffer overflow in Android's AAVCAssembler allows remote attackers to disclose information via crafted media files, requiring user interaction.
- 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-2021-39665?
CVE-2021-39665 is a medium-severity memory corruption vulnerability in Google Android, published on 11 Feb 2022. 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
In checkSpsUpdated of AAVCAssembler.cpp, there is a possible out of bounds read due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-204077881
Weakness: CWE-787
Which versions are affected by CVE-2021-39665?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2021-39665?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-39665 being exploited?
There is no known exploitation of CVE-2021-39665 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-204077881, ASB-A-204077881, GHSA-3v53-gq55-qxx3.