CVE-2021-30585 : What You Need to Know

Google Chrome before 92.0.4515.107 on Windows had a use-after-free vulnerability. An attacker could exploit this via a crafted HTML page to trigger heap corruption.

Understanding CVE-2021-30585

This vulnerability in Google Chrome allowed remote attackers to potentially manipulate heap memory through sensor handling.

What is CVE-2021-30585?

The CVE-2021-30585 vulnerability involved a use-after-free issue in sensor handling within Google Chrome on Windows. This flaw could be exploited by a remote attacker using a specially crafted HTML page.

The Impact of CVE-2021-30585

The impact of this vulnerability was the potential exploitation of heap corruption, leading to unauthorized access and arbitrary code execution by an attacker.

Technical Details of CVE-2021-30585

This section will cover specific technical details related to CVE-2021-30585, including its description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability in Google Chrome prior to 92.0.4515.107 on Windows involved a use-after-free issue in sensor handling. This flaw could be abused by a remote attacker through a malicious HTML page to corrupt heap memory.

Affected Systems and Versions

Google Chrome versions prior to 92.0.4515.107 on Windows were affected by this use-after-free vulnerability. Users with versions below this are at risk of exploitation.

Exploitation Mechanism

The exploitation of CVE-2021-30585 entailed a remote attacker leveraging the use-after-free flaw in sensor handling to trigger heap corruption. By enticing a victim to visit a malicious website or open a crafted HTML file, the attacker could execute arbitrary code.

Mitigation and Prevention

In order to mitigate the risks associated with CVE-2021-30585, immediate steps, long-term security practices, and the importance of patching and updates are crucial.

Immediate Steps to Take

Users are advised to update their Google Chrome browser to version 92.0.4515.107 or later to prevent exploitation of this vulnerability. Additionally, exercising caution when interacting with untrusted websites or files is recommended.

Long-Term Security Practices

To enhance security posture in the long term, practicing good cybersecurity habits such as regularly updating software, using reputable security tools, and staying informed about potential threats is essential.

Patching and Updates

Regularly checking for and applying security patches and updates for Google Chrome is imperative to address known vulnerabilities like CVE-2021-30585 and ensure a secure browsing experience.