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CVE-2021-21192 : Vulnerability Insights and Analysis

Critical heap buffer overflow vulnerability in Google Chrome prior to 89.0.4389.90 allows remote attackers to exploit heap corruption via crafted HTML pages. Update now for protection.

A heap buffer overflow vulnerability was discovered in Google Chrome prior to version 89.0.4389.90, allowing a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Understanding CVE-2021-21192

This section will provide insights into the impact, technical details, and mitigation strategies related to CVE-2021-21192.

What is CVE-2021-21192?

The CVE-2021-21192 vulnerability is a heap buffer overflow issue in tab groups in Google Chrome. It enables a remote attacker to exploit heap corruption through a specifically crafted HTML page.

The Impact of CVE-2021-21192

The vulnerability in Google Chrome, before version 89.0.4389.90, poses a significant risk as it allows remote attackers to potentially execute arbitrary code or cause a denial of service (DoS) condition by exploiting heap corruption.

Technical Details of CVE-2021-21192

This section will delve deeper into the vulnerability description, affected systems, and exploitation mechanism of CVE-2021-21192.

Vulnerability Description

The CVE-2021-21192 vulnerability stems from a heap buffer overflow in tab groups within Google Chrome, allowing an attacker to target and compromise the system's memory space.

Affected Systems and Versions

Google Chrome versions prior to 89.0.4389.90 are affected by this vulnerability. Users with outdated Chrome installations are at risk of exploitation.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by enticing a user to visit a malicious website hosting a specially crafted HTML page that triggers the heap buffer overflow.

Mitigation and Prevention

Protecting systems from CVE-2021-21192 involves taking immediate remediation steps and adopting robust security practices to prevent future vulnerabilities.

Immediate Steps to Take

Users and organizations are advised to update Google Chrome to version 89.0.4389.90 or later to mitigate the risk of exploitation associated with this vulnerability.

Long-Term Security Practices

Regularly updating software, implementing web filtering, and exercising caution while browsing can enhance overall cybersecurity posture and reduce the likelihood of successful attacks.

Patching and Updates

Google has released security patches to address the CVE-2021-21192 vulnerability. Users should promptly apply these updates to safeguard their systems against potential security risks.

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