CVE-2021-0543 Integer overflow in Android
An integer overflow in the Android NFC HAL allows local attackers with system privileges to escalate privileges via an out-of-bounds write.
- 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-2021-0543?
CVE-2021-0543 is a medium-severity vulnerability in Google Android, published on 22 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In phNxpNciHal_process_ext_rsp of phNxpNciHal_ext.cc, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-169258743
Which versions are affected by CVE-2021-0543?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2021-0543?
Apply the vendor's patch.
Is CVE-2021-0543 being exploited?
There is no known exploitation of CVE-2021-0543 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-169258743, GHSA-h26f-qpmr-2r4r, PUB-A-169258743.