CVE-2021-30557 : Vulnerability Insights and Analysis
Discover the details of CVE-2021-30557, a critical Use after free vulnerability in Google Chrome prior to 91.0.4472.114 allowing potential heap corruption exploitation via a malicious extension.
A detailed overview of CVE-2021-30557, a Use after free vulnerability in Google Chrome prior to version 91.0.4472.114 that could allow an attacker to exploit heap corruption via a crafted HTML page.
Understanding CVE-2021-30557
This section provides insights into the vulnerability, its impact, technical details, and mitigation strategies.
What is CVE-2021-30557?
CVE-2021-30557 is a Use after free vulnerability identified in TabGroups in Google Chrome versions prior to 91.0.4472.114. It could enable an attacker to exploit heap corruption by convincing a user to install a malicious extension.
The Impact of CVE-2021-30557
The impact of this vulnerability is significant as it allows an attacker to potentially execute arbitrary code on the victim's system, leading to unauthorized access and data theft.
Technical Details of CVE-2021-30557
Detailed technical information about the vulnerability, affected systems, and exploitation methods.
Vulnerability Description
The vulnerability arises due to improper handling of memory in TabGroups, which can be triggered by convincing a user to install a malicious extension.
Affected Systems and Versions
Google Chrome versions less than 91.0.4472.114 are vulnerable to this exploit, potentially affecting users who have not updated to the latest version.
Exploitation Mechanism
Attackers can exploit this vulnerability by tricking a user into installing a malicious extension and visiting a crafted HTML page, leading to heap corruption and potential code execution.
Mitigation and Prevention
Effective steps to mitigate the risks associated with CVE-2021-30557.
Immediate Steps to Take
Users are advised to update Google Chrome to version 91.0.4472.114 or newer to patch the vulnerability and prevent exploitation.
Long-Term Security Practices
Practicing safe browsing habits, using security tools, and staying informed about software updates can help prevent similar vulnerabilities in the future.
Patching and Updates
Regularly updating software, especially web browsers, is crucial to stay protected against known security threats and vulnerabilities.