CVE-2021-30535: 
vulnerability analysis and mitigation

CVE-2021-30535 is a security vulnerability identified in the International Components for Unicode (ICU) implementation within Google Chrome versions prior to 91.0.4472.77. The vulnerability was discovered and disclosed in June 2021, affecting the ICU component that handles Unicode and globalization support in the browser (NVD).

The vulnerability is classified as a double free vulnerability (CWE-415) in the ICU 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 a high severity issue that requires user interaction but no privileges for exploitation (NVD).

If successfully exploited, this vulnerability could allow a remote attacker to potentially exploit heap corruption through a specially crafted HTML page, potentially leading to arbitrary code execution within the context of the browser (NVD).

The vulnerability was patched in Google Chrome version 91.0.4472.77. Users and administrators are advised to upgrade to this version or later to mitigate the risk. The fix was also distributed to various Linux distributions including Fedora and Ubuntu through their respective update channels (Chrome Release).