Discover the details of CVE-2021-21145 affecting Google Chrome versions prior to 88.0.4324.146. Learn about the Use after free vulnerability and how to mitigate the risk.
A detailed analysis of CVE-2021-21145, a vulnerability that affects Google Chrome versions prior to 88.0.4324.146, allowing a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Understanding CVE-2021-21145
This section delves into the impact and technical details of this CVE.
What is CVE-2021-21145?
The vulnerability is classified as a 'Use after free' issue in Fonts in Google Chrome, potentially enabling a remote attacker to trigger heap corruption.
The Impact of CVE-2021-21145
The security flaw in Google Chrome versions preceding 88.0.4324.146 could be exploited by a malicious actor through a specially designed HTML page, risking heap corruption.
Technical Details of CVE-2021-21145
Let's explore the specifics of this vulnerability.
Vulnerability Description
CVE-2021-21145 involves a 'Use after free' flaw in Fonts within Google Chrome, which could be leveraged by an attacker to corrupt the memory heap.
Affected Systems and Versions
The vulnerability affects Google Chrome versions before 88.0.4324.146, making them susceptible to exploitation.
Exploitation Mechanism
By luring a user to visit a maliciously crafted HTML page, an attacker can trigger the Use after free issue in Chrome and potentially achieve heap corruption.
Mitigation and Prevention
Learn how to protect your systems from CVE-2021-21145.
Immediate Steps to Take
Users are advised to update their Google Chrome browsers to version 88.0.4324.146 or newer to mitigate the risk of exploitation.
Long-Term Security Practices
Implementing secure browsing habits and staying vigilant against phishing attempts can enhance overall cybersecurity posture.
Patching and Updates
Regularly applying software patches and staying informed about security updates can help prevent known vulnerabilities from being exploited.