CVE-2023-2133
📋 TL;DR
This vulnerability allows remote attackers to exploit heap corruption in Google Chrome via a crafted HTML page. It affects Chrome users on any operating system who haven't updated to version 112.0.5615.137 or later. Attackers could potentially execute arbitrary code or cause browser crashes.
💻 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 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 if exploit attempts are blocked by security controls.
🎯 Exploit Status
Exploitation requires user interaction (visiting malicious page) but no authentication. Heap corruption vulnerabilities can be complex to weaponize reliably.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 112.0.5615.137 and later
Vendor Advisory: https://chromereleases.googleblog.com/2023/04/stable-channel-update-for-desktop_18.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 with the update.
🔧 Temporary Workarounds
Disable Service Workers
allTemporarily disable Service Worker API which is vulnerable
chrome://flags/#enable-service-workers → Disable
Restart Chrome
Use Chrome Enterprise policies
windowsConfigure Chrome via group policy to block vulnerable features
Set 'DefaultJavaScriptJitSetting' to '2' (Disable JavaScript)
🧯 If You Can't Patch
- Disable JavaScript in Chrome settings for high-risk users
- Use browser isolation/sandboxing solutions
- Implement web filtering to block known malicious sites
🔍 How to Verify
Check if Vulnerable:
Check Chrome version: if below 112.0.5615.137, you are vulnerable.Check Version:
chrome://version/ (look for 'Google Chrome' version number)Verify Fix Applied:
Confirm Chrome version is 112.0.5615.137 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Chrome crash reports with memory access violations
- Unexpected Service Worker process terminations
Network Indicators:
- Requests to known exploit hosting domains
- Unusual JavaScript execution patterns
SIEM Query:
source="chrome_crash_reports" AND (message="ACCESS_VIOLATION" OR message="heap_corruption")🔗 References
- https://chromereleases.googleblog.com/2023/04/stable-channel-update-for-desktop_18.html
- https://crbug.com/1429197
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4AOSGAOPXLBK4A5ZRTVZ4M6QKVLSWMWG/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ES2CDRHR2Y4WY6DNDIAPYZFXJU3ZBFAV/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FEJZMAUB4XP44HSHEBDWEKFGA7DUHY42/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IHHD6KNH4WLUE6JG6HRQZWNAJMHJ32X7/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJQI63HWZFL6M26Q6UOHKDY6LD2PFC5Z/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SLO7BL2MHZYPY6O3OAEAQL3SKYMGGO6M/
- https://security.gentoo.org/glsa/202309-17
- https://www.debian.org/security/2023/dsa-5393
- https://chromereleases.googleblog.com/2023/04/stable-channel-update-for-desktop_18.html
- https://crbug.com/1429197
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4AOSGAOPXLBK4A5ZRTVZ4M6QKVLSWMWG/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ES2CDRHR2Y4WY6DNDIAPYZFXJU3ZBFAV/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FEJZMAUB4XP44HSHEBDWEKFGA7DUHY42/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IHHD6KNH4WLUE6JG6HRQZWNAJMHJ32X7/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJQI63HWZFL6M26Q6UOHKDY6LD2PFC5Z/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SLO7BL2MHZYPY6O3OAEAQL3SKYMGGO6M/
- https://security.gentoo.org/glsa/202309-17
- https://www.debian.org/security/2023/dsa-5393
