CVE-2021-30546 Explained : Impact and Mitigation
Learn about CVE-2021-30546, a 'Use after free' vulnerability in Google Chrome prior to 91.0.4472.101 that allows remote attackers to exploit heap corruption via a crafted HTML page. Take immediate steps to update Chrome for protection.
A detailed article outlining the CVE-2021-30546 vulnerability found in Google Chrome prior to version 91.0.4472.101.
Understanding CVE-2021-30546
This section provides insights into the nature of the vulnerability and its potential impact.
What is CVE-2021-30546?
The CVE-2021-30546 vulnerability is a 'Use after free' issue in Autofill in Google Chrome versions before 91.0.4472.101. This flaw could allow a remote attacker to potentially exploit heap corruption through a specially crafted HTML page.
The Impact of CVE-2021-30546
The vulnerability could result in remote attackers executing arbitrary code or causing denial of service on affected systems. Exploitation might lead to serious security breaches and unauthorized access to sensitive information.
Technical Details of CVE-2021-30546
In this section, we delve into the specifics of the vulnerability, affected systems, and the exploitation mechanism.
Vulnerability Description
The 'Use after free' vulnerability in Autofill in Google Chrome versions prior to 91.0.4472.101 could lead to heap corruption when interacting with malicious HTML content.
Affected Systems and Versions
Google Chrome versions less than 91.0.4472.101 are affected by this CVE, potentially putting users at risk of exploitation.
Exploitation Mechanism
Remote attackers can exploit this vulnerability by tricking users into visiting a malicious website hosting specially crafted HTML content, triggering the 'Use after free' flaw.
Mitigation and Prevention
This section provides guidance on how to mitigate the risks associated with CVE-2021-30546 and prevent potential security incidents.
Immediate Steps to Take
Users are advised to update their Google Chrome browsers to version 91.0.4472.101 or later to patch the vulnerability and prevent exploitation.
Long-Term Security Practices
Maintaining up-to-date software, exercising caution while browsing, and avoiding suspicious websites can help mitigate similar risks in the future.
Patching and Updates
Regularly checking for and applying security updates from trusted sources, such as Google, is crucial to address known vulnerabilities and protect systems from potential threats.