CVE-2021-0943 Memory corruption in Android
An out-of-bounds write in the Android MMU allows local attackers to escalate privileges without user interaction or additional execution rights.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-0943?
CVE-2021-0943 is a high-severity memory corruption vulnerability in Google Android, published on 13 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In MMU_MapPages of TBD, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-238916921
Weakness: CWE-787
Which versions are affected by CVE-2021-0943?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2021-0943?
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-2021-0943 being exploited?
There is no known exploitation of CVE-2021-0943 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-238916921, ASB-A-238916921, GHSA-8647-qxqp-f284.