Out of Bounds Memory Access Vulnerability in Chromium - CVE-2019-5786

chromium Updated 02 Oct 2025

Summary

27/06/2019
N/A
Yes i
Medium
6.5

CVE-2019-5786: Object lifetime issue in Blink in Google Chrome prior to 72.0.3626.121 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page. Affects chromium versions < 72.0.3626.121-1. Fixed in 72.0.3626.121-1. How to fix ↓

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Background

Chromium is an open-source web browser project that forms the basis for Google Chrome and several other browsers. It is designed for speed, simplicity, and security, providing users with a fast and efficient browsing experience. However, like any software, it is not immune to vulnerabilities. CVE-2019-5786 is a specific issue that affects multiple versions of Chromium across various Debian ecosystems, allowing potential exploitation through crafted HTML pages.

Vulnerability Detail

CVE-2019-5786 is an object lifetime issue in Blink, the rendering engine used by Chromium. This vulnerability allows a remote attacker to potentially perform out of bounds memory access, which can lead to crashes or arbitrary code execution. The flaw arises from improper handling of object lifetimes, making it possible for attackers to manipulate memory in a way that can compromise the integrity of the application. The ramifications of this vulnerability are significant, as it could allow attackers to execute malicious code on the user's machine, leading to data breaches or system compromise.

How To Fix

Minimum fixed version

72.0.3626.121-1

This is the first release that contains the fix.

sudo apt-get install --only-upgrade chromium

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Workaround

There are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the available updates as soon as possible to mitigate the risk.

Conclusion

CVE-2019-5786 represents a significant security risk for users of Chromium, particularly those on Debian systems. It is crucial to update to the latest version to protect against potential exploitation. Regular monitoring for vulnerabilities using tools like Vulert can further enhance security.

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FAQ

CVE-2019-5786 is a vulnerability in Chromium that allows for out of bounds memory access due to an object lifetime issue in Blink.

If you are using a version of Chromium prior to 72.0.3626.121, your installation is vulnerable to CVE-2019-5786.

Exploitation of this vulnerability could lead to crashes or arbitrary code execution, potentially compromising user data and system integrity.

You can update Chromium by running 'sudo apt update' followed by 'sudo apt upgrade chromium' in the terminal.

Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities in your software using just a manifest file like package-lock.json.

Related vulnerabilities

Recent vulnerabilities recorded for chromium.

How To Fix

Minimum fixed version

72.0.3626.121-1

This is the first release that contains the fix.

sudo apt-get install --only-upgrade chromium

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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