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CVE-2021-21110 : What You Need to Know

Learn about CVE-2021-21110, a use-after-free vulnerability in Google Chrome allowing sandbox escape. Find affected versions, impact, and mitigation steps.

Use after free in safe browsing in Google Chrome prior to 87.0.4280.141 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page.

Understanding CVE-2021-21110

This CVE is related to a use-after-free vulnerability in Google Chrome that could enable a remote attacker to escape the browser's sandbox.

What is CVE-2021-21110?

The vulnerability in Google Chrome, specifically prior to version 87.0.4280.141, could be exploited by a remote attacker through a maliciously crafted HTML page.

The Impact of CVE-2021-21110

This vulnerability could allow the attacker to escape the browser's sandbox, potentially leading to unauthorized access to sensitive information or further compromise of the affected system.

Technical Details of CVE-2021-21110

The technical details of this CVE include:

Vulnerability Description

The use-after-free vulnerability in the safe browsing feature of Google Chrome.

Affected Systems and Versions

Google Chrome versions prior to 87.0.4280.141 are affected by this vulnerability.

Exploitation Mechanism

An attacker can exploit this vulnerability through a specially crafted HTML page.

Mitigation and Prevention

To address CVE-2021-21110, consider the following:

Immediate Steps to Take

Update Google Chrome to version 87.0.4280.141 or higher to mitigate the risk of exploitation.

Long-Term Security Practices

Regularly update your browser and security software to protect against known vulnerabilities.

Patching and Updates

Stay informed about security advisories and patches released by Google to address vulnerabilities and improve browser security.

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