CVE-2021-30508: 
Node.js vulnerability analysis and mitigation

CVE-2021-30508 is a heap buffer overflow vulnerability discovered in the Media Feeds component of Google Chrome versions prior to 90.0.4430.212. The vulnerability was identified on April 2, 2021, and was reported by Leecraso and Guang Gong of 360 Alpha Lab (Chrome Release).

The vulnerability is classified as a heap buffer overflow that occurs in the Media Feeds component of Google Chrome. It received a CVSS v3.1 Base Score of 8.8 HIGH with a vector string of 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 to exploit (NVD). The vulnerability is categorized under CWE-787 (Out-of-bounds Write).

If successfully exploited, this vulnerability could allow an attacker who convinces a user to enable certain features in Chrome to potentially exploit heap corruption via a crafted HTML page. The high CVSS score indicates potential impacts on confidentiality, integrity, and availability of the system (NVD).

Google addressed this vulnerability in Chrome version 90.0.4430.212. Users and administrators are advised to upgrade to this version or later to mitigate the risk. The fix was also incorporated into various Linux distributions including Fedora and Gentoo through their respective security updates (Gentoo Advisory, Fedora Update).