CVE-2020-6469: 
Google Chrome vulnerability analysis and mitigation

CVE-2020-6469 is a security vulnerability discovered in Google Chrome prior to version 83.0.4103.61, reported by David Erceg on April 2, 2020. The vulnerability involves insufficient policy enforcement in 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 (Chrome Release, NVD).

The vulnerability is 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 vulnerability stems from improper enforcement of security policies in Chrome's developer tools, specifically related to Chrome Extensions. The issue is tracked under CWE-276 (Incorrect Default Permissions) (NVD).

When successfully exploited, this vulnerability could allow an attacker to perform a sandbox escape through a malicious Chrome extension, potentially leading to arbitrary code execution with elevated privileges. The attack requires user interaction in the form of installing a malicious extension (Chrome Release).

The vulnerability requires user interaction, specifically convincing a user to install a malicious Chrome extension. The attack can be executed remotely, requires low attack complexity, and needs no privileges other than getting the user to install the malicious extension (NVD).

The vulnerability was patched in Google Chrome version 83.0.4103.61. Users and administrators should upgrade to this version or later to mitigate the risk. The fix was also distributed to various Linux distributions including Debian, Fedora, and openSUSE through their respective security updates (Debian Advisory, Gentoo Advisory).