CVE-2024-3170
📋 TL;DR
This vulnerability is a use-after-free flaw in WebRTC within Google Chrome that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. Attackers could execute arbitrary code, compromise browser security, or cause crashes. All users running vulnerable versions of Chrome 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 sandboxed browser context.
If Mitigated
Minimal impact if Chrome's sandboxing and exploit mitigations contain the vulnerability.
🎯 Exploit Status
Exploitation requires user interaction (visiting malicious webpage). Chrome's sandbox makes full RCE challenging but possible.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 121.0.6167.85 and later
Vendor Advisory: https://chromereleases.googleblog.com/2024/01/stable-channel-update-for-desktop_23.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 with the patched version.
🔧 Temporary Workarounds
Disable WebRTC
allTemporarily disable WebRTC functionality to prevent exploitation.
chrome://flags/#disable-webrtc
Use browser extensions to block WebRTC
allInstall extensions like 'WebRTC Leak Prevent' or 'uBlock Origin' with WebRTC blocking enabled.
🧯 If You Can't Patch
- Restrict access to untrusted websites using web filtering or proxy policies.
- Implement application whitelisting to prevent unauthorized code execution.
🔍 How to Verify
Check if Vulnerable:
Check Chrome version: If version is below 121.0.6167.85, the system is vulnerable.Check Version:
google-chrome --version (Linux/Mac) or check chrome://version in browserVerify Fix Applied:
Confirm Chrome version is 121.0.6167.85 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports
- Unexpected process termination logs
- Security event logs showing exploit attempts
Network Indicators:
- Unusual WebRTC traffic patterns
- Requests to known malicious domains hosting exploit code
SIEM Query:
source="chrome_logs" AND (event="crash" OR event="process_termination") AND version<"121.0.6167.85"