CVE-2020-6507
Node.js vulnerability analysis and mitigation

Overview

Out of bounds write vulnerability (CVE-2020-6507) was discovered in V8 engine of Google Chrome versions prior to 83.0.4103.106. The vulnerability allowed remote attackers to potentially exploit heap corruption through a specially crafted HTML page (NVD, Chrome Blog).

Technical details

The vulnerability is classified as a high-severity issue with a CVSS v3.1 base score of 8.8. It was identified as an out-of-bounds write vulnerability (CWE-787) in the V8 JavaScript engine, combined with improper input validation (CWE-20). The vulnerability requires user interaction and can be exploited remotely through network access (NVD).

Impact

If successfully exploited, this vulnerability could lead to heap corruption, potentially allowing an attacker to execute arbitrary code within the context of the browser. The vulnerability affects the confidentiality, integrity, and availability of the system, with all three aspects rated as high impact according to the CVSS scoring (NVD).

Exploitability

The vulnerability was discovered by Sergei Glazunov of Google Project Zero on May 27, 2020. Exploit code has been publicly available, as indicated by references to remote code execution exploits (Chrome Blog).

Mitigation and workarounds

Google released a patch in Chrome version 83.0.4103.106 to address this vulnerability. Users and administrators are advised to upgrade to this version or later. For Gentoo Linux users, the fix was included in version 84.0.4147.89 of both Chromium and Google Chrome packages (Gentoo).

Additional resources


SourceThis report was generated using AI

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