CVE-2024-6776
📋 TL;DR
This is a use-after-free vulnerability in Chrome's audio component that allows remote attackers to potentially exploit heap corruption. Attackers can trigger this by tricking users into visiting a malicious HTML page. All Chrome users on vulnerable versions are affected.
💻 Affected Systems
- Google Chrome
- Chromium-based browsers
📦 What is this software?
Chrome by Google
Google Chrome is the world's most popular web browser, used by over 3 billion users globally across Windows, macOS, Linux, Android, and iOS platforms. As a Chromium-based browser developed by Google, Chrome dominates the browser market with approximately 65% market share, making it a critical compon...
Learn more about Chrome →⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full system compromise, data theft, or malware installation.
Likely Case
Browser crash (denial of service) or limited code execution within Chrome's sandbox.
If Mitigated
No impact if Chrome is updated to patched version or if exploit attempts are blocked by security controls.
🎯 Exploit Status
Requires user interaction (visiting malicious page) but no authentication. Heap corruption exploitation requires additional steps for reliable RCE.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 126.0.6478.182
Vendor Advisory: https://chromereleases.googleblog.com/2024/07/stable-channel-update-for-desktop.html
Restart Required: Yes
Instructions:
Open Chrome
Click three-dot menu → Help → About Google Chrome
Chrome will automatically check for and install update
Click 'Relaunch' to restart Chrome
🔧 Temporary Workarounds
Disable JavaScript
allPrevents malicious HTML from executing exploit code
Use browser extensions
allInstall NoScript or similar extensions to block untrusted scripts
🧯 If You Can't Patch
- Block access to untrusted websites using web filtering
- Implement application whitelisting to prevent unauthorized Chrome execution
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in Settings → About Chrome. If version is below 126.0.6478.182, system is vulnerable.Check Version:
chrome://version/ or on command line: google-chrome --versionVerify Fix Applied:
Confirm Chrome version is 126.0.6478.182 or higher in About Chrome page.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports
- Unexpected Chrome process termination
- Security event logs showing Chrome access violations
Network Indicators:
- HTTP requests to known malicious domains hosting exploit code
- Unusual outbound connections from Chrome processes
SIEM Query:
source="chrome_crash_reports" AND (event_id="1000" OR event_id="1001")