CVE-2022-20127 Use after free in Android

Critical 9.8 Published Updated

A double free vulnerability in Android's NFC stack allows remote attackers to execute arbitrary code without user interaction or additional privileges.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2022-20127?

CVE-2022-20127 is a critical use after free vulnerability in Google Android, published on 15 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In ce_t4t_data_cback of ce_t4t.cc, there is a possible out of bounds write due to a double free. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-221862119

Weakness: CWE-787, CWE-415

Which versions are affected by CVE-2022-20127?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2022-20127?

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-2022-20127 being exploited?

There is no known exploitation of CVE-2022-20127 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-221862119, ASB-A-221862119, GHSA-v2rr-ww6m-w47m.

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