google chrome CVE-2021-37973 vulnerability in Google and Other Products
Published on October 8, 2021

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Use after free in Portals in Google Chrome prior to 94.0.4606.61 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Vendor Advisory Vendor Advisory NVD

Known Exploited Vulnerability

This Google Chrome Use-After-Free Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Use-after-free weakness in Portals, Google's new web page navigation system for Chrome. Successful exploitation can let attackers to execute code.

The following remediation steps are recommended / required by November 17, 2021: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2021-37973 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 2.8 out of four. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.

What is a Dangling pointer Vulnerability?

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

CVE-2021-37973 has been classified to as a Dangling pointer vulnerability or weakness.


Products Associated with CVE-2021-37973

You can be notified by stack.watch whenever vulnerabilities like CVE-2021-37973 are published in these products:

Google Chrome
 
Fedora Project Fedora
 
Debian Linux
 

What versions are vulnerable to CVE-2021-37973?