CVE-2021-30611
vulnerability analysis and mitigation

Overview

CVE-2021-30611 is a Use-after-free vulnerability affecting WebRTC in Chromium-based browsers. The vulnerability was discovered in 2021 and affects multiple versions of Google Chrome, ChromeOS, and Microsoft Edge prior to version 93.0.4577.63 (NVD, CVE Mitre).

Technical details

The vulnerability is classified as a Use-after-free (CWE-416) issue in the WebRTC component. It has 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 network accessibility, low attack complexity, and high impact on confidentiality, integrity, and availability (NVD).

Impact

The vulnerability could allow an attacker who convinces a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page, potentially leading to arbitrary code execution (NVD).

Mitigation and workarounds

The vulnerability has been fixed in Chrome version 93.0.4577.63 and corresponding versions of other Chromium-based browsers. Users are advised to update their browsers to the latest version (Fedora Update).

Additional resources


SourceThis report was generated using AI

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