CVE-2021-39629: Use After Free

Published Jan 4, 2022

Updated

In phTmlNfcInit and phTmlNfcCleanUp of phTmlNfc.cc, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-9Android ID: A-197353344

Affected Software

5 affected components

Google Android=9.0

Google Android=10.0

Google Android=11.0

Google Android=12.0

Google Android

Event History

Jan 4, 2022

CVE Published

via Android·12:00 AM

Data Sourced

via Android·12:00 AM

SeverityWeaknessAffected Software

Jan 14, 2022

CVE Published

via MITRE·07:11 PM

Data Sourced

via MITRE·07:11 PM

DescriptionWeakness

Frequently Asked Questions

What is the severity of CVE-2021-39629?

CVE-2021-39629 has been classified as a high-severity vulnerability due to its potential for local privilege escalation.

How do I fix CVE-2021-39629?

To fix CVE-2021-39629, ensure your Android device is updated to the latest security patches provided by Google.

Who is affected by CVE-2021-39629?

CVE-2021-39629 affects multiple Android versions including 9.0, 10.0, 11.0, and 12.0.

What type of vulnerability is CVE-2021-39629?

CVE-2021-39629 is categorized as a use after free vulnerability caused by a race condition.

Is user interaction required to exploit CVE-2021-39629?

No, user interaction is not needed for the exploitation of CVE-2021-39629.