CVE-2022-0808
📋 TL;DR
This is a use-after-free vulnerability in Chrome OS Shell that allows remote attackers to potentially exploit heap corruption through user interactions. It affects Google Chrome on Chrome OS before version 99.0.4844.51. Attackers need to convince users to perform specific interactions to trigger the vulnerability.
💻 Affected Systems
- Google Chrome
- Chrome OS
📦 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 system compromise through heap corruption leading to arbitrary code execution, potentially allowing attackers to gain complete control of the Chrome OS device.
Likely Case
Application crash or denial of service, with potential for limited code execution in the Chrome OS Shell context.
If Mitigated
No impact if patched or if users avoid suspicious interactions; standard security controls like sandboxing may limit damage.
🎯 Exploit Status
Requires user interaction and specific conditions; no public exploit code available as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 99.0.4844.51 and later
Vendor Advisory: https://chromereleases.googleblog.com/2022/03/stable-channel-update-for-desktop.html
Restart Required: Yes
Instructions:
1. Open Chrome browser on Chrome OS. 2. Click the three-dot menu > Help > About Google Chrome. 3. Chrome will automatically check for and install updates. 4. Click 'Relaunch' to restart Chrome with the update.
🔧 Temporary Workarounds
Disable automatic Chrome updates
allPrevent Chrome from automatically updating to ensure controlled patching.
chrome://settings/help
Toggle 'Automatically update Chrome for all users' to off
🧯 If You Can't Patch
- Restrict user access to untrusted websites and applications.
- Implement application whitelisting to prevent unauthorized Chrome usage.
🔍 How to Verify
Check if Vulnerable:
Check Chrome version by navigating to chrome://settings/help and verifying if version is below 99.0.4844.51.Check Version:
chrome://settings/helpVerify Fix Applied:
Confirm Chrome version is 99.0.4844.51 or higher in chrome://settings/help.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports
- Unexpected process terminations in Chrome OS logs
Network Indicators:
- Unusual outbound connections from Chrome processes
SIEM Query:
source="chrome_crash_reports" AND version<"99.0.4844.51"🔗 References
- https://chromereleases.googleblog.com/2022/03/stable-channel-update-for-desktop.html
- https://crbug.com/1292271
- https://security.gentoo.org/glsa/202208-25
- https://chromereleases.googleblog.com/2022/03/stable-channel-update-for-desktop.html
- https://crbug.com/1292271
- https://security.gentoo.org/glsa/202208-25
