CVE-2017-5021 Explained : Impact and Mitigation
Learn about CVE-2017-5021, a use after free vulnerability in Google Chrome versions prior to 56.0.2924.76 for Linux, Windows, and Mac, and 56.0.2924.87 for Android, allowing remote attackers to execute out-of-bounds memory reads.
A vulnerability found in Google Chrome versions prior to 56.0.2924.76 for Linux, Windows, and Mac, as well as 56.0.2924.87 for Android allowed remote attackers to execute an out-of-bounds memory read through a specially crafted HTML page.
Understanding CVE-2017-5021
This CVE entry pertains to a use after free vulnerability in Google Chrome.
What is CVE-2017-5021?
CVE-2017-5021 is a security vulnerability in Google Chrome that enables remote attackers to gain unauthorized access by exploiting a use after free issue.
The Impact of CVE-2017-5021
The vulnerability allows attackers to execute an out-of-bounds memory read, potentially leading to unauthorized access and data theft.
Technical Details of CVE-2017-5021
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The use after free vulnerability in Google Chrome versions prior to 56.0.2924.76 for Linux, Windows, and Mac, and 56.0.2924.87 for Android, allows remote attackers to perform an out-of-bounds memory read via a crafted HTML page.
Affected Systems and Versions
- Google Chrome prior to 56.0.2924.76 for Linux, Windows, and Mac
- Google Chrome 56.0.2924.87 for Android
Exploitation Mechanism
Attackers can exploit this vulnerability by creating a specially designed HTML page to trigger the use after free issue.
Mitigation and Prevention
Protecting systems from CVE-2017-5021 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Google Chrome to version 56.0.2924.76 for Linux, Windows, and Mac, and 56.0.2924.87 for Android.
- Avoid clicking on suspicious links or visiting untrusted websites.
- Implement web filtering and security software to block malicious content.
Long-Term Security Practices
- Regularly update software and applications to patch known vulnerabilities.
- Educate users on safe browsing habits and the importance of software updates.
Patching and Updates
Ensure timely installation of security patches and updates provided by Google Chrome to address the CVE-2017-5021 vulnerability.