CVE-2021-39708 : Security Advisory and Response

Android vulnerability that can lead to remote escalation of privilege.

Understanding CVE-2021-39708

A vulnerability in Android that allows for remote privilege escalation without user interaction.

What is CVE-2021-39708?

Vulnerability in gatt_process_notification of gatt_cl.cc in Android
Possible out of bounds write due to incorrect bounds check
Can lead to remote escalation of privilege without additional execution privileges needed

The Impact of CVE-2021-39708

Allows remote attackers to potentially escalate privileges without user interaction

Technical Details of CVE-2021-39708

A detailed look at the technical aspects of the vulnerability.

Vulnerability Description

Found in gatt_process_notification of gatt_cl.cc
Results in a potential out of bounds write due to incorrect bounds check

Affected Systems and Versions

Product: Android
Versions: Android-12

Exploitation Mechanism

No user interaction required
Remote attackers can exploit to escalate privilege

Mitigation and Prevention

Measures to address and prevent exploitation of the vulnerability.

Immediate Steps to Take

Apply the latest security patches from the vendor
Monitor for any suspicious activity on affected systems

Long-Term Security Practices

Regularly update and patch system software
Implement network segmentation and access controls

Patching and Updates

Stay informed about security bulletins from Android
Ensure timely application of patches and updates