CVE-2021-21140 : What You Need to Know
Learn about CVE-2021-21140, an uninitialized use vulnerability in USB in Google Chrome versions prior to 88.0.4324.96. Understand the impact, technical details, and mitigation steps.
A detailed overview of CVE-2021-21140 highlighting the impact, technical details, and mitigation strategies.
Understanding CVE-2021-21140
This section will cover what CVE-2021-21140 is, its impact, affected systems, and exploitation methods.
What is CVE-2021-21140?
CVE-2021-21140 refers to an uninitialized use vulnerability in USB in Google Chrome versions prior to 88.0.4324.96. This flaw may enable a local attacker to potentially access out-of-bounds memory via a USB device.
The Impact of CVE-2021-21140
The vulnerability allows a local attacker to exploit the USB feature in Google Chrome before version 88.0.4324.96, leading to potential out-of-bounds memory access, which could compromise system security.
Technical Details of CVE-2021-21140
In-depth information about the vulnerability to help understand its nature and potential risks.
Vulnerability Description
Uninitialized use in USB in Google Chrome versions earlier than 88.0.4324.96 exposes a security hole that permits local attackers to perform out-of-bounds memory access through a USB device.
Affected Systems and Versions
Google Chrome versions less than 88.0.4324.96 are affected by this vulnerability, emphasizing the importance of updating to the latest version to mitigate the risk.
Exploitation Mechanism
Local attackers can exploit vulnerable Google Chrome versions by leveraging the uninitialized use in USB, potentially leading to unauthorized memory access.
Mitigation and Prevention
Crucial steps to address and prevent the risks associated with CVE-2021-21140.
Immediate Steps to Take
Immediately update Google Chrome to version 88.0.4324.96 or later to patch the vulnerability and enhance system security against potential exploits.
Long-Term Security Practices
Regularly update browsers and software applications to stay protected from known vulnerabilities like the one identified in CVE-2021-21140.
Patching and Updates
Stay informed about security updates from Google Chrome to ensure timely installation of patches and protection against emerging threats.