CVE-2021-30545: 
Google Chrome vulnerability analysis and mitigation

CVE-2021-30545 is a Use-after-free vulnerability discovered in the Extensions component of Google Chrome versions prior to 91.0.4472.101. The vulnerability was disclosed on June 15, 2021, affecting Google Chrome's browser security (NVD, Chrome Release).

The vulnerability is classified as a Use-after-free (CWE-416) issue in the Extensions component of Google Chrome. It received 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, indicating high severity with potential for significant impact (NVD).

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

The vulnerability was patched in Google Chrome version 91.0.4472.101. Users and administrators are advised to upgrade to this version or later to mitigate the risk. Various Linux distributions including Fedora and Gentoo have also released security updates to address this vulnerability (Gentoo Advisory, Fedora Update).