CVE-2023-21056 Memory corruption in Android
A type confusion vulnerability in the Android kernel allows local attackers with system privileges to escalate privileges via memory corruption.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-21056?
CVE-2023-21056 is a medium-severity memory corruption vulnerability in Google Android, published on 24 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In lwis_slc_buffer_free of lwis_device_slc.c, there is a possible memory corruption due to type confusion. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-245300559References: N/A
Weakness: CWE-843
Which versions are affected by CVE-2023-21056?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2023-21056?
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-2023-21056 being exploited?
There is no known exploitation of CVE-2023-21056 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-245300559, GHSA-wcgq-gqh8-8p8f, PUB-A-245300559.