CVE-2024-9959
📋 TL;DR
This is a use-after-free vulnerability in Chrome DevTools that could allow a remote attacker who has already compromised the renderer process to exploit heap corruption via a malicious Chrome extension. It affects Google Chrome users running versions prior to 130.0.6723.58. The attacker needs initial access to the renderer process before exploiting this vulnerability.
💻 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
Full system compromise through heap corruption leading to arbitrary code execution in the browser context, potentially allowing data theft, malware installation, or lateral movement.
Likely Case
Browser crash or instability, with potential for limited data exfiltration if combined with other vulnerabilities.
If Mitigated
No impact if Chrome is updated or if renderer process compromise is prevented through other security controls.
🎯 Exploit Status
Exploitation requires renderer process compromise first, then using a crafted Chrome extension to trigger the use-after-free condition.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 130.0.6723.58 and later
Vendor Advisory: https://chromereleases.googleblog.com/2024/10/stable-channel-update-for-desktop_15.html
Restart Required: Yes
Instructions:
1. Open Chrome. 2. Click the three-dot menu. 3. Go to Help > About Google Chrome. 4. Chrome will automatically check for and install updates. 5. Click Relaunch to restart Chrome with the updated version.
🔧 Temporary Workarounds
Disable Chrome Extensions
allTemporarily disable all Chrome extensions to reduce attack surface while waiting to patch.
chrome://extensions/
Toggle off all extensions
Enable Site Isolation
allEnsure site isolation is enabled to limit renderer process compromise impact.
chrome://flags/#site-isolation-trial-opt-out
Set to 'Disabled'
🧯 If You Can't Patch
- Restrict installation of Chrome extensions to trusted sources only
- Implement application whitelisting to prevent unauthorized Chrome usage
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in Settings > About Chrome. If version is below 130.0.6723.58, the system is vulnerable.Check Version:
google-chrome --version (Linux) or check chrome://version/Verify Fix Applied:
Confirm Chrome version is 130.0.6723.58 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with memory corruption signatures
- Unexpected Chrome extension installation or activity
Network Indicators:
- Unusual outbound connections from Chrome process
- Downloads of suspicious Chrome extension files
SIEM Query:
process_name:chrome AND (event_id:1000 OR event_id:1001) AND memory_corruption