CVE-2021-39667 Memory corruption in Android
A heap buffer overflow in the Android H.264 decoder allows remote attackers to disclose sensitive information via crafted media files.
- 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-2021-39667?
CVE-2021-39667 is a medium-severity memory corruption vulnerability in Google Android, published on 16 Mar 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 ih264d_parse_decode_slice of ih264d_parse_slice.c, there is a possible out of bounds write 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-10 Android-11 Android-12Android ID: A-205702093
Weakness: CWE-787
Which versions are affected by CVE-2021-39667?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2021-39667?
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-2021-39667 being exploited?
There is no known exploitation of CVE-2021-39667 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-205702093, ASB-A-205702093, GHSA-7qc3-w7g5-wxwm.