CVE-2021-0473 Use after free in Android
A double free vulnerability in Android's NFC stack allows remote code execution without user interaction or privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-0473?
CVE-2021-0473 is a high-severity use after free vulnerability in Google Android, published on 11 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In rw_t3t_process_error of rw_t3t.cc, there is a possible double free due to uninitialized data. This could lead to remote code execution over NFC with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-179687208
Weakness: CWE-908
Which versions are affected by CVE-2021-0473?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2021-0473?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2021-0473 being exploited?
There is no known exploitation of CVE-2021-0473 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-179687208, ASB-A-179687208, GHSA-hwp9-gmcw-f7c2.