CVE-2019-5755 : What You Need to Know
Learn about CVE-2019-5755 where Google Chrome's V8 mishandled negative zero, enabling unauthorized read/write operations. Find mitigation steps and update information here.
Google Chrome's V8 prior to version 72.0.3626.81 mishandled negative zero, allowing attackers to execute unauthorized operations through crafted HTML pages.
Understanding CVE-2019-5755
Before version 72.0.3626.81, Google Chrome's V8 incorrectly managed negative zero, enabling unauthorized read and write operations through a specially crafted HTML page.
What is CVE-2019-5755?
This CVE refers to the incorrect handling of negative zero in V8 in Google Chrome before version 72.0.3626.81, which allowed remote attackers to perform arbitrary read/write operations via a specially crafted HTML page.
The Impact of CVE-2019-5755
- Attackers could exploit this vulnerability to execute unauthorized read and write operations on affected systems.
Technical Details of CVE-2019-5755
Google Chrome vulnerability details and affected systems.
Vulnerability Description
- Google Chrome's V8 prior to version 72.0.3626.81 incorrectly managed negative zero, leading to unauthorized operations through malicious HTML pages.
Affected Systems and Versions
- Product: Chrome
- Vendor: Google
- Versions Affected: < 72.0.3626.81
Exploitation Mechanism
- Attackers could exploit this vulnerability by crafting malicious HTML pages to trigger unauthorized read and write operations.
Mitigation and Prevention
Protective measures and steps to mitigate the CVE-2019-5755 vulnerability.
Immediate Steps to Take
- Update Google Chrome to version 72.0.3626.81 or higher to patch the vulnerability.
- Avoid clicking on suspicious links or visiting untrusted websites to minimize the risk of exploitation.
Long-Term Security Practices
- Regularly update browsers and software to the latest versions to ensure protection against known vulnerabilities.
- Implement security best practices such as using ad blockers and keeping browser extensions to a minimum to reduce attack surfaces.
Patching and Updates
- Google released a patch in version 72.0.3626.81 to address the vulnerability. Ensure all systems are updated to this version or later to prevent exploitation.