CVE-2021-0927 : Vulnerability Insights and Analysis

A logic error in the code of TvInputManagerService.java in Android could allow a possible permission bypass, leading to local escalation of privilege without requiring extra execution privileges. This vulnerability, with ID A-189824175, affects Android versions 8.1, 9, 10, 11, and 12.

Understanding CVE-2021-0927

This CVE involves a flaw that could be exploited to elevate privileges on Android devices.

What is CVE-2021-0927?

The vulnerability in requestChannelBrowsable of TvInputManagerService.java in Android enables a potential permission bypass, allowing attackers to escalate privileges locally.

The Impact of CVE-2021-0927

This vulnerability could be exploited without the need for user interaction, potentially leading to local elevation of privilege on affected Android versions.

Technical Details of CVE-2021-0927

This section provides an overview of the vulnerability's technical aspects.

Vulnerability Description

The vulnerability lies in a logic error in the code of TvInputManagerService.java, which could be abused for a permission bypass.

Affected Systems and Versions

Android versions 8.1, 9, 10, 11, and 12 are impacted by this vulnerability.

Exploitation Mechanism

Attackers could leverage the flaw to escalate privileges locally without the need for additional execution privileges.

Mitigation and Prevention

Protecting systems from CVE-2021-0927 involves immediate steps and long-term security practices.

Immediate Steps to Take

Ensure systems are updated with the latest security patches and fixes to mitigate the vulnerability.

Long-Term Security Practices

Implement robust security measures, such as regular security audits and updates, to prevent similar privilege escalation issues.

Patching and Updates

Stay vigilant for security advisories and promptly apply patches to secure Android devices against known vulnerabilities.