CVE-2021-37980: 
vulnerability analysis and mitigation

CVE-2021-37980 is a security vulnerability discovered in Google Chrome's Sandbox implementation prior to version 94.0.4606.81. The vulnerability was reported by Yonghwi Jin (@jinmo123) of Theori on September 30, 2021, and was patched in October 2021. This vulnerability specifically affected Chrome installations on Windows systems and could potentially allow attackers to bypass site isolation protections (Chrome Release).

The vulnerability was classified as High severity with a CVSS v3.1 base score of 7.4 (HIGH). The vulnerability vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N, indicating that it is network exploitable, requires low attack complexity, needs no privileges, but does require user interaction. The vulnerability stems from an inappropriate implementation in the Chrome Sandbox mechanism, which could potentially allow bypass of site isolation protections (NVD).

The vulnerability could allow a remote attacker to potentially bypass site isolation via Windows. Site isolation is a critical security feature in Chrome that separates different websites into different processes to prevent malicious sites from accessing data from other sites. A successful exploit could lead to unauthorized access to sensitive information from other sites (NVD).

The vulnerability was fixed in Chrome version 94.0.4606.81. Users and organizations are advised to update to this version or later. The fix was also incorporated into various Linux distributions, including Debian 10.0 and 11.0, and Fedora 33 (Debian Advisory, Fedora Update).