CVE-2021-30536: 
vulnerability analysis and mitigation

CVE-2021-30536 is a security vulnerability discovered in Google Chrome's V8 engine prior to version 91.0.4472.77. The vulnerability was identified as an out-of-bounds read issue that could potentially lead to stack corruption when a user visits a specially crafted HTML page (Chrome Release, NVD).

The vulnerability is classified as an out-of-bounds read vulnerability (CWE-125) in the V8 JavaScript engine. It received a CVSS v3.1 base score of 8.1 (HIGH), with a vector string of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H, indicating network accessibility, low attack complexity, and requiring user interaction (NVD).

The vulnerability could allow a remote attacker to potentially exploit stack corruption through a specially crafted HTML page, potentially leading to arbitrary code execution or system compromise (NVD, Gentoo Advisory).

The vulnerability was patched in Google Chrome version 91.0.4472.77. Users and administrators are advised to upgrade to this version or later. Various Linux distributions including Fedora and Gentoo have also released security updates to address this vulnerability (Gentoo Advisory, Fedora Update).