CVE-2021-0589 : Exploit Details and Defense Strategies

Android versions 8.1, 9, 10, and 11 are affected by a vulnerability in BTM_TryAllocateSCN, allowing for potential local privilege escalation. This could be exploited without user interaction.

Understanding CVE-2021-0589

This CVE impacts Android devices running versions 8.1, 9, 10, and 11, potentially leading to an elevation of privilege without user involvement.

What is CVE-2021-0589?

CVE-2021-0589 is a vulnerability found in BTM_TryAllocateSCN of btm_scn.cc in Android versions 8.1, 9, 10, and 11. It results in an incorrect bounds check, enabling a local attacker to escalate privileges without the need for user interaction.

The Impact of CVE-2021-0589

The impact of this vulnerability is the potential escalation of privileges on affected Android devices without requiring any interaction from the user.

Technical Details of CVE-2021-0589

This section delves into the specifics of the vulnerability.

Vulnerability Description

The vulnerability in BTM_TryAllocateSCN of btm_scn.cc leads to an out-of-bounds write due to an incorrect bounds check.

Affected Systems and Versions

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

Exploitation Mechanism

Exploiting this vulnerability could result in local privilege escalation without the need for user interaction.

Mitigation and Prevention

Here are the measures to mitigate the impact of CVE-2021-0589.

Immediate Steps to Take

Users are advised to apply security updates provided by Android as soon as they are available to address this vulnerability.

Long-Term Security Practices

Regularly updating the Android operating system is crucial for maintaining security and preventing exploitation of known vulnerabilities.

Patching and Updates

Keep track of security bulletins and patches released by Android to ensure the latest security measures are in place.