CVE-2024-5493
📋 TL;DR
This vulnerability is a heap buffer overflow in WebRTC within Google Chrome that allows remote attackers to potentially exploit heap corruption via a crafted HTML page. It affects all users running vulnerable versions of Chrome, potentially leading to arbitrary code execution. The severity is high with a CVSS score of 8.8.
💻 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...
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⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or ransomware deployment.
Likely Case
Browser crash (denial of service) or limited code execution within the browser sandbox.
If Mitigated
No impact if Chrome is updated to patched version or if exploit attempts are blocked by security controls.
🎯 Exploit Status
Exploitation requires user to visit a malicious webpage. No public exploit code is currently known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 125.0.6422.141
Vendor Advisory: https://chromereleases.googleblog.com/2024/05/stable-channel-update-for-desktop_30.html
Restart Required: Yes
Instructions:
1. Open Chrome. 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 WebRTC
allTemporarily disable WebRTC functionality to prevent exploitation via this vector.
chrome://flags/#disable-webrtc
Use browser extensions to block malicious sites
allInstall security extensions that block known malicious domains and scripts.
🧯 If You Can't Patch
- Restrict browser usage to trusted websites only
- Implement network filtering to block malicious HTML content
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in Settings → About Chrome. If version is below 125.0.6422.141, the system is vulnerable.Check Version:
google-chrome --versionVerify Fix Applied:
Confirm Chrome version is 125.0.6422.141 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports
- Unexpected process termination events
- Security event logs showing heap corruption
Network Indicators:
- Unusual WebRTC traffic patterns
- Requests to known malicious domains hosting exploit code
SIEM Query:
source="chrome_logs" AND (event="crash" OR event="heap_corruption")🔗 References
- https://chromereleases.googleblog.com/2024/05/stable-channel-update-for-desktop_30.html
- https://issues.chromium.org/issues/339877165
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5SQOWDIVBXQYQPPBSCH7EFISYAOCTHD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZW4TZXVPN3NLZ4UDGZP6OASUM4OVLXX2/
- https://chromereleases.googleblog.com/2024/05/stable-channel-update-for-desktop_30.html
- https://issues.chromium.org/issues/339877165
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5SQOWDIVBXQYQPPBSCH7EFISYAOCTHD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZW4TZXVPN3NLZ4UDGZP6OASUM4OVLXX2/
