CVE-2021-1008 : Security Advisory and Response

An in-depth look at CVE-2021-1008 affecting Android-12 and the possible denial of service vulnerability it poses.

Understanding CVE-2021-1008

This CVE impacts Android-12, potentially leading to a denial of service issue without user interaction.

What is CVE-2021-1008?

The vulnerability resides in the code logic of SubscriptionController.java, allowing an attacker to trigger a factory reset, causing local denial of service.

The Impact of CVE-2021-1008

Exploiting this vulnerability could result in a local denial of service with the need for System execution privileges but no user interaction required.

Technical Details of CVE-2021-1008

A closer look at the vulnerability specifics, affected systems, and the exploitation mechanism.

Vulnerability Description

The issue lies in the addSubInfo function of SubscriptionController.java, potentially forcing users into a factory reset, leading to denial of service.

Affected Systems and Versions

Affected product: Android Affected version: Android-12

Exploitation Mechanism

Attackers can trigger a factory reset without user interaction, leveraging logic errors in the code to achieve denial of service.

Mitigation and Prevention

Discover effective strategies to mitigate the risks posed by CVE-2021-1008.

Immediate Steps to Take

Ensure systems running Android-12 are updated with the latest security patches to prevent exploitation of this vulnerability.

Long-Term Security Practices

Implement stringent code review processes and security best practices to catch logic errors that could lead to potential denial of service attacks.

Patching and Updates

Stay informed about security advisories from Android and promptly apply patches to address known vulnerabilities.