CVE-2024-2176
📋 TL;DR
This is a use-after-free vulnerability in Chrome's FedCM (Federated Credential Management) component 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 vulnerable.
💻 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 →Fedora by Fedoraproject
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full system compromise, data theft, or malware installation.
Likely Case
Browser crashes, denial of service, or limited information disclosure.
If Mitigated
No impact if Chrome is updated to patched version or workarounds are implemented.
🎯 Exploit Status
Exploitation requires user to visit malicious website. No public exploit code known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 122.0.6261.111 or later
Vendor Advisory: https://chromereleases.googleblog.com/2024/03/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 FedCM
allTemporarily disable Federated Credential Management feature
chrome://flags/#fedcm
Set to 'Disabled'
🧯 If You Can't Patch
- Use alternative browser until Chrome can be updated
- Implement network filtering to block malicious websites
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in About Google Chrome pageCheck Version:
chrome://version/Verify Fix Applied:
Verify Chrome version is 122.0.6261.111 or higher📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports
- Unexpected process termination
Network Indicators:
- Requests to suspicious domains with FedCM parameters
SIEM Query:
source="chrome" AND (event="crash" OR event="process_termination")🔗 References
- https://chromereleases.googleblog.com/2024/03/stable-channel-update-for-desktop.html
- https://issues.chromium.org/issues/325936438
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OYEGSHTMXIPXD5OW5CXVWQS3ZUBCBSXG/
- https://chromereleases.googleblog.com/2024/03/stable-channel-update-for-desktop.html
- https://issues.chromium.org/issues/325936438
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OYEGSHTMXIPXD5OW5CXVWQS3ZUBCBSXG/
