Google Chrome, a widely used web browser, has recently been found to be vulnerable to an out-of-bounds read exploit that could potentially allow a remote attacker to access memory beyond the allocated bounds. This exploit, identified as CVE-2025-1919, affects the Media component of Google Chrome before version 134..6998.35. It has been classified by Chromium as having a medium security severity. In this article, we will discuss the intricacies of the vulnerability, explore the related code snippets, refer to original references, and examine the exploit details in simple, accessible language.

Out-of-Bounds Read in Media

The primary vulnerability lies in the Media component of Google Chrome. Before version 134..6998.35, the browser was susceptible to an out-of-bounds read issue where a remote attacker could potentially access memory beyond the allocated bounds via a maliciously crafted HTML page. For a closer look at the specifics of the code snippet exploited, refer to the Chromium code review (link).

Exploit Details

To fully understand the nature of the vulnerability, we need to dissect the out-of-bounds read issue. An out-of-bounds read occurs when a program reads data from outside of its designated memory space. The attacker can craft a specific HTML page that, when loaded by the vulnerable version of Google Chrome, triggers the out-of-bounds read. The following code snippet gives an idea of how the vulnerability may have been triggered:

<html>
  <body>
    <video src="malicious_video.mp4" autoplay></video>
  </body>
</html>

By leveraging this vulnerability, a remote attacker could potentially access sensitive information stored in the memory or cause the browser to crash, leading to a denial of service attack.

Referencing Original Sources

To further study this vulnerability, the following links provide in-depth technical details and background information on the issue and its ramifications:

1. Chromium Bug Tracker - The official bug report with discussions surrounding the issue and potential fixes.
2. Google Chrome Releases Blog - The official announcement of the stable channel update that addresses the vulnerability.
3. National Vulnerability Database (NVD) - CVE-2025-1919 entry in the NVD that provides further information on the vulnerability and its impact.

Mitigation and Remediation

To protect against this out-of-bounds read vulnerability, users should update their Google Chrome browser to the latest version, 134..6998.35 or later. The update can be downloaded directly from the Google Chrome website or checked for and installed through the browser's settings menu. It is crucial for users to stay vigilant and keep their software updated regularly to mitigate the impact of such vulnerabilities.

Conclusion

In summary, CVE-2025-1919 is an out-of-bounds read vulnerability that could lead to potential memory access issues, sensitive information exposure, and denial of service attacks. This vulnerability affected Google Chrome releases prior to version 134..6998.35 in the Media component. By understanding the code snippet exploits, referencing original sources, and applying the recommended fixes, users can significantly reduce the impact of this vulnerability and maintain a secure browsing experience.

Timeline

Published on: 03/05/2025 04:15:11 UTC
Last modified on: 04/01/2025 20:42:12 UTC