CVE-2021-39730 : What You Need to Know
Learn about CVE-2021-39730, an Android kernel vulnerability leading to local information disclosure. Find mitigation steps and long-term security practices.
This CVE-2021-39730 article provides details about a possible out of bounds read vulnerability in Android kernel, leading to local information disclosure with System execution privileges. No user interaction is required for exploitation.
Understanding CVE-2021-39730
CVE-2021-39730 involves an out of bounds read vulnerability in the Android kernel, potentially resulting in local information disclosure with System execution privileges.
What is CVE-2021-39730?
- Type: Information disclosure
- Product: Android
- Affected Version: Android kernel
The Impact of CVE-2021-39730
The vulnerability could allow an attacker to gain access to sensitive information without the need for user interaction, posing a risk of local information disclosure.
Technical Details of CVE-2021-39730
This section covers the technical aspects of the vulnerability.
Vulnerability Description
The issue arises from a missing bounds check in the Android kernel, leading to an out of bounds read vulnerability.
Affected Systems and Versions
- Product: Android
- Affected Version: Android kernel
Exploitation Mechanism
The vulnerability can be exploited locally with System execution privileges without the requirement of user interaction.
Mitigation and Prevention
To mitigate the impact of CVE-2021-39730, follow the steps below:
Immediate Steps to Take
- Apply security updates from Android promptly
- Monitor vendor security bulletins for patches
Long-Term Security Practices
- Implement the principle of least privilege
- Regularly update and patch all software and systems
Patching and Updates
- Install relevant patches and updates from Android to address the vulnerability effectively.