CVE-2021-21114 : Exploit Details and Defense Strategies
Learn about CVE-2021-21114, a use after free vulnerability in Google Chrome audio component. Find out its impact, affected versions, and mitigation steps.
A detailed article outlining the CVE-2021-21114 vulnerability in Google Chrome, including its impact, technical details, and mitigation strategies.
Understanding CVE-2021-21114
This section will cover what CVE-2021-21114 is and the potential risks associated with it.
What is CVE-2021-21114?
CVE-2021-21114 is a 'Use after free' vulnerability in Google Chrome that allows a remote attacker to exploit heap corruption through a crafted HTML page.
The Impact of CVE-2021-21114
The vulnerability impacts users of Google Chrome versions prior to 87.0.4280.141 and could potentially lead to heap corruption and unauthorized access.
Technical Details of CVE-2021-21114
In this section, we will delve into the specifics of the vulnerability, including the description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability arises from a use after free issue in Chrome's audio component, which can be triggered by visiting a malicious website.
Affected Systems and Versions
Google Chrome versions prior to 87.0.4280.141 are affected by CVE-2021-21114, exposing users to potential exploitation.
Exploitation Mechanism
Remote attackers can exploit this vulnerability by enticing users to visit a specially crafted HTML page designed to trigger the use after free condition.
Mitigation and Prevention
This section will provide insights into immediate steps to take and long-term security practices to mitigate the risks posed by CVE-2021-21114.
Immediate Steps to Take
Users should update Google Chrome to version 87.0.4280.141 or later to patch the vulnerability and prevent potential exploitation.
Long-Term Security Practices
In addition to updating Chrome, users are advised to practice safe browsing habits, avoid clicking on suspicious links, and keep their browsers up to date to prevent similar vulnerabilities.
Patching and Updates
Regularly check for security updates from Google Chrome and apply patches promptly to ensure protection against known vulnerabilities.