CVE-2021-21108 : Security Advisory and Response
Get insights into CVE-2021-21108, a critical vulnerability in Google Chrome allowing potential sandbox escape via a crafted HTML page. Learn about impact, affected versions, and mitigation.
This CVE-2021-21108 article provides insights into a critical vulnerability identified in Google Chrome prior to version 87.0.4280.141, enabling a potential sandbox escape through a crafted HTML page.
Understanding CVE-2021-21108
CVE-2021-21108 pertains to a 'Use after free' vulnerability in media in Google Chrome, allowing a remote attacker to potentially execute a sandbox escape if they have compromised the renderer process.
What is CVE-2021-21108?
The CVE-2021-21108 vulnerability in Google Chrome versions before 87.0.4280.141 is related to a specific issue in the media component, enabling an attacker to trigger a sandbox escape.
The Impact of CVE-2021-21108
This vulnerability could be exploited by an attacker who has already compromised the renderer process, potentially leading to a sandbox escape using a specially crafted HTML page.
Technical Details of CVE-2021-21108
The technical details of CVE-2021-21108 include the vulnerability description, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
The 'Use after free' vulnerability in media in Google Chrome before version 87.0.4280.141 allows an attacker to potentially escape the sandbox.
Affected Systems and Versions
Google Chrome versions less than 87.0.4280.141 are affected by this vulnerability.
Exploitation Mechanism
By compromising the renderer process, a remote attacker could leverage a crafted HTML page to execute a sandbox escape.
Mitigation and Prevention
Understanding how to mitigate and prevent the CVE-2021-21108 vulnerability is crucial to maintaining cybersecurity.
Immediate Steps to Take
Users should update Google Chrome to version 87.0.4280.141 or later to mitigate the risk of exploitation.
Long-Term Security Practices
Implementing secure browsing habits and regularly updating software and security patches are essential for long-term protection.
Patching and Updates
Regularly check for updates and apply patches promptly to ensure the security of the browsing environment.