CVE-2021-39715 : What You Need to Know

This article provides detailed information about CVE-2021-39715, a vulnerability impacting Android kernel leading to local information disclosure.

Understanding CVE-2021-39715

CVE-2021-39715 is a vulnerability in Android kernel that could result in kernel memory leakage and address exposure, potentially leading to local information disclosure.

What is CVE-2021-39715?

The vulnerability in __show_regs of process.c allows for possible kernel memory leakage and address exposure, which could be exploited to disclose local information without the need for user interaction.

The Impact of CVE-2021-39715

The vulnerability requires system execution privileges for exploitation, posing a risk of local information disclosure without user interaction.

Technical Details of CVE-2021-39715

Android kernel vulnerability details are as follows:

Vulnerability Description

The flaw in __show_regs of process.c can result in the leakage of kernel memory and addresses due to log information disclosure.

Affected Systems and Versions

Product: Android
Versions: Android kernel
Status: Affected

Exploitation Mechanism

The vulnerability leads to local information disclosure with System execution privileges required for exploitation.

Mitigation and Prevention

Ways to mitigate and prevent the impact of CVE-2021-39715:

Immediate Steps to Take

Apply security patches promptly to fix the vulnerability.
Monitor vendor updates for security advisories.

Long-Term Security Practices

Regularly update systems and software to protect against known vulnerabilities.
Implement strong access controls to prevent unauthorized access.
Conduct security assessments to identify and address potential weaknesses.

Patching and Updates

Regularly check for and apply the latest patches and updates to ensure the security of Android devices.