CVE-2024-0519: 
vulnerability analysis and mitigation

CVE-2024-0519 is a high-severity vulnerability affecting the V8 JavaScript engine in Google Chrome versions prior to 120.0.6099.224. The vulnerability was discovered on January 11, 2024, and disclosed by Google on January 16, 2024. It affects Google Chrome and other software products that use the V8 engine, including Couchbase Server (Chrome Release, NVD).

The vulnerability is classified as an out-of-bounds memory access issue in the V8 JavaScript engine that could potentially lead to heap corruption. It has been assigned 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. The vulnerability is associated with CWE-787 (Out-of-bounds Write) and CWE-125 (Out-of-bounds Read) (NVD).

The vulnerability allows remote attackers to potentially exploit heap corruption via a crafted HTML page, which could lead to arbitrary code execution, information disclosure, or system crashes. The high CVSS score indicates that successful exploitation could result in a complete compromise of the affected system's confidentiality, integrity, and availability (Bleeping Computer).

Google has released patches for all affected platforms: Windows (120.0.6099.224/225), Mac (120.0.6099.234), and Linux (120.0.6099.224). Users are strongly advised to update their Chrome browsers immediately. The update will be automatically installed when users restart their browsers, but can also be triggered manually through the Chrome settings menu (Chrome Release).

The vulnerability has gained significant attention as it represents the first actively exploited Chrome zero-day of 2024. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added this vulnerability to their Known Exploited Vulnerabilities Catalog, requiring federal agencies to apply patches by February 7, 2024 (NVD).