CVE-2020-6471: 
Google Chrome vulnerability analysis and mitigation

CVE-2020-6471 is a security vulnerability discovered in Google Chrome prior to version 83.0.4103.61. The vulnerability was identified as an insufficient policy enforcement issue in the browser's developer tools that allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension (NVD, Chrome Release).

The vulnerability was classified with a CVSS v3.1 base score of 9.6 (CRITICAL), with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H. The issue stems from improper enforcement of security policies in Chrome's developer tools, specifically relating to extension handling. The vulnerability was reported by security researcher David Erceg and was assigned a medium severity rating by the Chrome security team (NVD, Chrome Release).

The vulnerability could allow an attacker to perform a sandbox escape through a crafted Chrome Extension, potentially compromising the security boundaries set by the browser. This could lead to unauthorized access and potential execution of arbitrary code outside the browser's sandboxed environment (NVD).

The vulnerability requires user interaction in the form of installing a malicious extension. While this provides some mitigation against automated attacks, the vulnerability was still considered serious due to its potential impact. The vulnerability was fixed before any known exploits in the wild (Chrome Release).

The vulnerability was patched in Chrome version 83.0.4103.61. Users and organizations were advised to update to this version or later to mitigate the risk. Multiple Linux distributions also released security updates to address this vulnerability, including Debian, Fedora, and Gentoo (Debian Security, Fedora Update, Gentoo Security).