CVE-2022-1485
📋 TL;DR
This vulnerability is a use-after-free flaw in Chrome's File System API that allows remote attackers to potentially exploit heap corruption via a crafted HTML page. Attackers could execute arbitrary code or cause browser crashes. All users of affected Chrome versions are at risk.
💻 Affected Systems
- Google Chrome
📦 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 to visit malicious webpage. No public exploit code available at disclosure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 101.0.4951.41 and later
Vendor Advisory: https://chromereleases.googleblog.com/2022/04/stable-channel-update-for-desktop_26.html
Restart Required: Yes
Instructions:
1. Open Chrome. 2. Click three-dot menu → Help → About Google Chrome. 3. Chrome will automatically check for updates and install version 101.0.4951.41 or later. 4. Click 'Relaunch' to restart Chrome.
🔧 Temporary Workarounds
Disable JavaScript
allPrevents exploitation since attack requires JavaScript execution
chrome://settings/content/javascript → Block
Use Chrome Enterprise policies
allBlock access to File System API via enterprise policies
Set 'DefaultFileSystemAccessPermission' to 2 (Block)
🧯 If You Can't Patch
- Use alternative browser temporarily
- Implement web filtering to block known malicious sites
🔍 How to Verify
Check if Vulnerable:
Check Chrome version: if below 101.0.4951.41, you are vulnerable.Check Version:
chrome://version/ (on Chrome) or 'google-chrome --version' (Linux terminal)Verify Fix Applied:
Confirm Chrome version is 101.0.4951.41 or higher.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports
- Unexpected File System API access patterns
Network Indicators:
- Requests to known exploit hosting domains
- Suspicious JavaScript loading patterns
SIEM Query:
source="chrome_crash_logs" AND (process="chrome" OR process="chrome.exe") AND message="heap corruption" OR message="use-after-free"🔗 References
- https://chromereleases.googleblog.com/2022/04/stable-channel-update-for-desktop_26.html
- https://crbug.com/1299743
- https://security.gentoo.org/glsa/202208-25
- https://chromereleases.googleblog.com/2022/04/stable-channel-update-for-desktop_26.html
- https://crbug.com/1299743
- https://security.gentoo.org/glsa/202208-25
