CVE-2021-21157 : Vulnerability Insights and Analysis

A detailed article outlining the CVE-2021-21157 vulnerability found in Google Chrome.

Understanding CVE-2021-21157

This section provides insights into the nature and impact of the vulnerability.

What is CVE-2021-21157?

The CVE-2021-21157 vulnerability refers to a use-after-free issue in Web Sockets in Google Chrome on Linux versions before 88.0.4324.182. This flaw could allow a remote attacker to potentially exploit heap corruption through a specially crafted HTML page.

The Impact of CVE-2021-21157

The vulnerability could be exploited by malicious actors to trigger heap corruption in affected systems, leading to potential security breaches and system compromise.

Technical Details of CVE-2021-21157

Explore the technical aspects of the CVE-2021-21157 vulnerability.

Vulnerability Description

The vulnerability arises from a use-after-free bug in Web Sockets, enabling attackers to tamper with heap memory, potentially leading to the execution of arbitrary code or a Denial of Service (DoS) attack.

Affected Systems and Versions

Google Chrome running on Linux systems with versions below 88.0.4324.182 are vulnerable to this exploit.

Exploitation Mechanism

Attackers can exploit this vulnerability by enticing users to visit a malicious website containing crafted HTML code, triggering the use-after-free condition and corrupting heap memory.

Mitigation and Prevention

Discover how to mitigate and prevent the CVE-2021-21157 vulnerability.

Immediate Steps to Take

Users are advised to update Google Chrome to version 88.0.4324.182 or newer to patch the vulnerability and prevent potential exploitation.

Long-Term Security Practices

Implementing secure browsing habits, avoiding suspicious websites, and utilizing security software can help mitigate the risk of similar vulnerabilities.

Patching and Updates

Regularly updating Google Chrome to the latest version ensures that known vulnerabilities are patched, enhancing the overall security posture of the browser.