CVE-2021-0684: Use After Free

Published Sep 7, 2021

Updated

In TouchInputMapper::sync of TouchInputMapper.cpp, there is a possible out of bounds write due to a use after free. 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-8.1 Android-9Android ID: A-179839665

Affected Software

5 affected components

Google Android=8.1

Google Android=9.0

Google Android=10.0

Google Android=11.0

Google Android

Remediation

Patch Available

https://source.android.com/security/bulletin/2021-09-01

Event History

Sep 7, 2021

CVE Published

via Android·12:00 AM

Data Sourced

via Android·12:00 AM

SeverityWeaknessAffected Software

Oct 6, 2021

CVE Published

via MITRE·02:11 PM

Data Sourced

via MITRE·02:11 PM

DescriptionWeakness

Frequently Asked Questions

What is the severity of CVE-2021-0684?

CVE-2021-0684 is classified as a high severity vulnerability due to the potential for local escalation of privilege.

How do I fix CVE-2021-0684?

To fix CVE-2021-0684, ensure that your Android device is updated to the latest version that includes the security patches addressing this vulnerability.

What are the affected Android versions for CVE-2021-0684?

CVE-2021-0684 affects Android versions 8.1, 9.0, 10.0, and 11.0.

Is user interaction required for the exploitation of CVE-2021-0684?

No, user interaction is not required for the exploitation of CVE-2021-0684.

What types of privileges can be escalated by exploiting CVE-2021-0684?

Exploiting CVE-2021-0684 can lead to local escalation of privilege without needing additional execution privileges.