CVE-2021-21169 : Exploit Details and Defense Strategies
Learn about CVE-2021-21169, an out of bounds memory access vulnerability in Google Chrome prior to version 89.0.4389.72 that could allow remote attackers to execute arbitrary code.
Out of bounds memory access in V8 in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.
Understanding CVE-2021-21169
This section will cover details about the CVE-2021-21169 vulnerability in Google Chrome.
What is CVE-2021-21169?
The CVE-2021-21169 vulnerability in Google Chrome allowed a remote attacker to exploit an out of bounds memory access issue in V8, potentially through a specially crafted HTML page.
The Impact of CVE-2021-21169
The impact of CVE-2021-21169 could lead to remote attackers executing arbitrary code or causing a denial of service on affected systems running vulnerable versions of Google Chrome.
Technical Details of CVE-2021-21169
In this section, technical details of the CVE-2021-21169 vulnerability will be discussed.
Vulnerability Description
The vulnerability involved an out of bounds memory access issue in V8 in Google Chrome versions prior to 89.0.4389.72, allowing remote attackers to exploit this flaw.
Affected Systems and Versions
Google Chrome versions before 89.0.4389.72 were affected by this vulnerability, potentially impacting users on those versions.
Exploitation Mechanism
The exploitation of CVE-2021-21169 involved a remote attacker tricking a user into visiting a specially crafted HTML page, triggering the out of bounds memory access.
Mitigation and Prevention
This section will provide details on how to mitigate and prevent the CVE-2021-21169 vulnerability in Google Chrome.
Immediate Steps to Take
Users should update their Google Chrome browser to version 89.0.4389.72 or newer to patch the vulnerability and prevent potential exploitation.
Long-Term Security Practices
To enhance security, users are advised to keep their browsers and software up to date, use security measures like antivirus software, and exercise caution while browsing.
Patching and Updates
Regularly check for updates from the official Google Chrome releases page and apply patches promptly to ensure protection against known vulnerabilities.