Google Chrome V8 Out-of-Bounds Memory Access Vulnerability (CVE-2024-0519) Technical Advisory
Executive & SecOps Summary
SECOPS ASSESSMENTGoogle Chrome and Chromium-based browsers prior to version 120.0.6099.224
A remote attacker can trigger heap corruption via a crafted HTML page, potentially leading to arbitrary code execution (RCE) or sensitive information disclosure within the browser renderer process
Immediately update Google Chrome and Chromium-based browsers to the latest stable version (120.0.6099.224 or higher)
Affected Products & Version Scope
Remediation & Live Workaround Commands
PATCH & WORKAROUND1. Official Patch & Version Upgrade Commands
To update Google Chrome to the latest secure version on Linux (Ubuntu/Debian-based systems), execute the following commands:
# Update package repositories and upgrade Google Chrome
sudo apt-get update && sudo apt-get --only-upgrade install google-chrome-stable -y
# Verify the installed version
google-chrome --version2. Temporary Workaround & Hardening Configuration
If immediate patching is not feasible, enforce Google Chrome's Safe Browsing policies and restrict JavaScript execution on untrusted sites via Group Policy or registry modifications using PowerShell:
# Enforce Enhanced Safe Browsing via Windows Registry
New-Item -Path 'HKLM:\SOFTWARE\Policies\Google\Chrome' -Force | Out-Null
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Google\Chrome' -Name 'SafeBrowsingProtectionLevel' -Value 2 -PropertyType DWord -Force3. Log Audit & IoC Verification Commands
Audit the installed Chrome versions across your fleet to identify vulnerable endpoints using the following script:
# macOS bash script to audit Google Chrome version
chrome_path='/Applications/Google Chrome.app/Contents/Info.plist'
if [ -f '$chrome_path' ]; then
version=$(defaults read '$chrome_path' CFBundleShortVersionString)
echo 'Current Chrome Version: '$version
else
echo 'Google Chrome is not installed in the default directory.'
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Technical Root Cause & Exploitation Mechanics
1. Vulnerability Overview & Root Cause
This vulnerability (CVE-2024-0519) is an out-of-bounds memory access flaw within the V8 JavaScript and WebAssembly engine of Google Chrome and Chromium. The root cause lies in V8's insufficient bounds checking during memory layout optimization or index handling of JavaScript objects. This deficiency allows the engine to read (CWE-125) or write (CWE-787) memory locations outside the allocated buffer boundaries, leading to memory corruption.
2. Exploitation Mechanics & Attack Scenario
An attacker exploits this vulnerability by hosting a specially crafted HTML page containing malicious JavaScript code and enticing target users to visit the site (e.g., via phishing or drive-by download campaigns). When the browser renders the page, the V8 JIT (Just-In-Time) compiler processes the malicious script, triggering the out-of-bounds access. By carefully manipulating the heap layout (heap spraying), the attacker can bypass browser security controls, execute arbitrary code within the renderer sandbox, or read sensitive data from the process memory.
3. Infrastructure & Business Impact
As a vulnerability actively exploited in the wild (listed in CISA's KEV catalog), CVE-2024-0519 poses a severe threat to enterprise environments. Successful exploitation on an employee's workstation can compromise the endpoint, serving as an initial entry point for lateral movement within the corporate network. This can lead to data exfiltration, ransomware deployment, and significant operational disruption.
Official Vendor Advisories & References
Out of bounds memory access in V8 in Google Chrome prior to 120.0.6099.224 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Frequently Asked SecOps Questions (CVE-2024-0519)
FAQQ1. How critical is CVE-2024-0519 and is it actively exploited in the wild?
CVE-2024-0519 is rated CVSS 8.8 (HIGH) with a 30-day EPSS exploitation probability of 3.8%. It is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, requiring immediate emergency remediation.
Q2. Which vendors and products are affected by CVE-2024-0519?
Primary impacted vendors include google, chromium across chrome, chromium. Scope summary: Google Chrome versions prior to 120.0.6099.224 on Windows, macOS, and Linux, as well as other browsers utilizing the affected Chromium release
Q3. What temporary mitigations or workarounds exist for CVE-2024-0519 before patching?
[Mitigation] Immediately update Google Chrome and Chromium-based browsers to the latest stable version (120.0.6099.224 or higher) Follow the CLI remediation commands and interactive SecOps checklist on this page to restrict exposure prior to your maintenance window.
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