CVE-2021-30516: 
Node.js vulnerability analysis and mitigation

CVE-2021-30516 is a heap buffer overflow vulnerability discovered in the History component of Google Chrome versions prior to 90.0.4430.212. The vulnerability was disclosed in May 2021 and affects Google Chrome's browser history functionality (Chrome Release, NVD).

The vulnerability is classified as a heap buffer overflow vulnerability that specifically affects the History component in Google Chrome. It has been assigned a CVSS v3.1 base score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The vulnerability is tracked under CWE-787 (Out-of-bounds Write) (NVD).

When successfully exploited, this vulnerability could allow a remote attacker who has compromised the renderer process to potentially exploit heap corruption via a crafted HTML page. The high CVSS score indicates that successful exploitation could lead to significant impacts on the confidentiality, integrity, and availability of the affected system (NVD).

The vulnerability has been patched in Google Chrome version 90.0.4430.212. Users and administrators are advised to upgrade to this version or later. Multiple Linux distributions have also released security updates to address this vulnerability, including Fedora and Gentoo (Gentoo Advisory, Fedora Update).