CVE-2024-12695
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code within Chrome's sandbox by exploiting an out-of-bounds write in the V8 JavaScript engine. All users running vulnerable versions of Google Chrome are affected when visiting malicious websites.
💻 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 sandbox escape leading to arbitrary code execution on the host system, potentially compromising the entire machine.
Likely Case
Arbitrary code execution within Chrome's sandbox, allowing data theft, cryptocurrency mining, or installation of malware.
If Mitigated
Sandbox containment prevents full system compromise, but attacker can still access browser data and user sessions.
🎯 Exploit Status
Requires JavaScript execution and specific memory manipulation, but no authentication needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 131.0.6778.204
Vendor Advisory: https://chromereleases.googleblog.com/2024/12/stable-channel-update-for-desktop_18.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 update. 4. Click 'Relaunch' to restart Chrome with the patched version.
🔧 Temporary Workarounds
Disable JavaScript
allPrevents exploitation by disabling JavaScript execution in Chrome
Use Site Isolation
allEnable site isolation to limit impact of sandbox escape
🧯 If You Can't Patch
- Restrict browser usage to trusted websites only
- Implement network filtering to block malicious domains
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in Settings → About Chrome. If version is below 131.0.6778.204, system is vulnerable.Check Version:
chrome://version/ in Chrome address barVerify Fix Applied:
Confirm Chrome version is 131.0.6778.204 or higher in Settings → About Chrome.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with V8-related errors
- Unusual process spawning from Chrome
Network Indicators:
- Connections to known malicious domains from Chrome
- Unusual outbound traffic patterns
SIEM Query:
source="chrome" AND (event_type="crash" OR process_name="chrome.exe") AND message="V8"