CVE-2022-4914
📋 TL;DR
This vulnerability is a heap buffer overflow in Chrome's PrintPreview feature that allows attackers to potentially exploit heap corruption. Attackers need to convince users to install a malicious extension and then visit a crafted HTML page. All Chrome users prior to version 104.0.5112.79 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 ransomware deployment
Likely Case
Browser crash, memory corruption, or limited code execution within browser sandbox
If Mitigated
No impact if Chrome is updated to patched version or malicious extensions are blocked
🎯 Exploit Status
Requires social engineering to install malicious extension first
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 104.0.5112.79 and later
Vendor Advisory: https://chromereleases.googleblog.com/2022/08/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 Chrome auto-updates
allPrevents automatic installation of malicious extensions
chrome://settings/extensions → Toggle off 'Allow extensions from other stores'
Restrict extension permissions
allLimit what extensions can access
chrome://settings/content → Review site permissions for each extension
🧯 If You Can't Patch
- Use alternative browser until Chrome can be updated
- Implement strict extension whitelisting policies
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in About Google Chrome pageCheck Version:
chrome://versionVerify Fix Applied:
Confirm Chrome version is 104.0.5112.79 or higher📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with PrintPreview in stack trace
- Unexpected extension installation events
Network Indicators:
- Downloads of suspicious Chrome extensions
- Connections to known malicious domains serving crafted HTML
SIEM Query:
source="chrome_crash_reports" AND message="PrintPreview" OR event="extension_install" AND NOT user="authorized"🔗 References
- https://chromereleases.googleblog.com/2022/08/stable-channel-update-for-desktop.html
- https://crbug.com/1232402
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YKLJ3B3D5BCVWE3QNP4N7HHF26OHD567/
- https://chromereleases.googleblog.com/2022/08/stable-channel-update-for-desktop.html
- https://crbug.com/1232402
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YKLJ3B3D5BCVWE3QNP4N7HHF26OHD567/
