CVE-2024-9369

9.6 CRITICAL

📋 TL;DR

This vulnerability allows a remote attacker who has already compromised Chrome's renderer process to perform out-of-bounds memory writes via a crafted HTML page. This could lead to arbitrary code execution within the browser context. All users running vulnerable versions of Google Chrome are affected.

💻 Affected Systems

Products:
  • Google Chrome
  • Chromium-based browsers
Versions: Prior to 129.0.6668.89
Operating Systems: Windows, macOS, Linux, Android, iOS
Default Config Vulnerable: ⚠️ Yes
Notes: All standard Chrome installations are vulnerable. Requires renderer process compromise first.

📦 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 browser compromise leading to arbitrary code execution, data theft, and potential system compromise if combined with other vulnerabilities.

🟠

Likely Case

Browser crash or sandbox escape allowing further exploitation within the browser context.

🟢

If Mitigated

Limited impact due to Chrome's sandboxing, potentially just a browser crash.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: HIGH

Requires renderer process compromise first, then exploitation of this specific vulnerability.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 129.0.6668.89 and later

Vendor Advisory: https://chromereleases.googleblog.com/2024/10/stable-channel-update-for-desktop.html

Restart Required: Yes

Instructions:

1. Open Chrome. 2. Click three-dot menu → Help → About Google Chrome. 3. Chrome will automatically check for and install updates. 4. Click 'Relaunch' to restart Chrome.

🔧 Temporary Workarounds

Disable JavaScript

all

Prevents exploitation by disabling JavaScript execution

chrome://settings/content/javascript → Block

🧯 If You Can't Patch

  • Use alternative browsers until patching is possible
  • Implement network filtering to block malicious websites

🔍 How to Verify

Check if Vulnerable:

Check Chrome version in Settings → About Chrome. If version is below 129.0.6668.89, system is vulnerable.

Check Version:

chrome://version/

Verify Fix Applied:

Verify Chrome version is 129.0.6668.89 or higher after update.

📡 Detection & Monitoring

Log Indicators:

  • Chrome crash reports
  • Renderer process termination logs

Network Indicators:

  • Unusual outbound connections from Chrome processes

SIEM Query:

source="chrome" AND (event="crash" OR event="renderer_terminated")

🔗 References

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