CVE-2022-0463
📋 TL;DR
This is a use-after-free vulnerability in Chrome's Accessibility component that could allow heap corruption. An attacker could exploit this by tricking a user into specific interactions on a malicious webpage. All Chrome users on versions before 98.0.4758.80 are affected.
💻 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 or denial of service; potential for limited code execution in sandboxed context.
If Mitigated
No impact if Chrome is fully patched or if user avoids malicious websites.
🎯 Exploit Status
Exploitation requires specific user interaction but no authentication; heap corruption makes reliable exploitation challenging.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 98.0.4758.80
Vendor Advisory: https://chromereleases.googleblog.com/2022/02/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 apply update. 4. Click 'Relaunch' when prompted.
🔧 Temporary Workarounds
Disable Accessibility Features
allTemporarily disable Chrome's accessibility features to reduce attack surface.
chrome://settings/accessibility → Disable all accessibility features
🧯 If You Can't Patch
- Use alternative browser until patch can be applied.
- Implement strict web filtering to block potentially malicious sites.
🔍 How to Verify
Check if Vulnerable:
Check Chrome version: if below 98.0.4758.80, system is vulnerable.Check Version:
google-chrome --version (Linux) or chrome://version (all platforms)Verify Fix Applied:
Confirm Chrome version is 98.0.4758.80 or higher.📡 Detection & Monitoring
Log Indicators:
- Chrome crash logs with accessibility-related stack traces
- Unexpected Chrome process termination
Network Indicators:
- Connections to suspicious domains followed by Chrome crashes
SIEM Query:
source="chrome_crash_logs" AND message="accessibility" OR "heap corruption"