CVE-2021-30520 : What You Need to Know
Learn about CVE-2021-30520, a critical vulnerability in Google Chrome that could allow heap corruption via malicious extension installation. Take immediate steps to update Chrome and enhance long-term security.
A vulnerability labeled as CVE-2021-30520 has been identified in Google Chrome. This vulnerability, if exploited, could lead to heap corruption by manipulating a crafted HTML page through a malicious extension installation.
Understanding CVE-2021-30520
This section will cover what CVE-2021-30520 entails in terms of impact and technical details.
What is CVE-2021-30520?
The CVE-2021-30520 vulnerability involves a use-after-free issue in the Tab Strip of Google Chrome version prior to 90.0.4430.212. An attacker can take advantage of this flaw by convincing a user to install a malicious extension, potentially leading to heap corruption via a specially crafted HTML page.
The Impact of CVE-2021-30520
The impact of CVE-2021-30520 is significant as it allows an attacker to exploit heap corruption, posing a threat to the integrity and security of affected systems.
Technical Details of CVE-2021-30520
Delve deeper into the technical aspects of CVE-2021-30520, including the vulnerability description, affected systems and versions, and exploitation mechanism.
Vulnerability Description
The vulnerability stems from a use-after-free flaw in the Tab Strip of Google Chrome. This flaw can be leveraged through a carefully crafted HTML page when a user installs a malicious extension.
Affected Systems and Versions
The vulnerability affects Google Chrome versions earlier than 90.0.4430.212.
Exploitation Mechanism
Exploiting CVE-2021-30520 involves manipulating a malicious extension installation to trigger heap corruption through a crafted HTML page.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2021-30520 and prevent potential attacks through immediate steps and long-term security practices.
Immediate Steps to Take
Users are advised to update Google Chrome to version 90.0.4430.212 or later, avoid installing untrusted extensions, and exercise caution when browsing the web.
Long-Term Security Practices
Incorporate secure browsing habits, regularly update software and extensions, utilize reputable security tools, and stay informed about potential threats to enhance long-term security.
Patching and Updates
Frequently check for and apply security patches and updates released by Google Chrome to address vulnerabilities and strengthen the overall security posture of your system.