CVE-2022-1863

8.8 HIGH

📋 TL;DR

This is a use-after-free vulnerability in Chrome's Tab Groups feature that allows heap corruption when a user installs a malicious extension and performs specific interactions. Attackers could potentially execute arbitrary code or cause browser crashes. All Chrome users with vulnerable versions are affected.

💻 Affected Systems

Products:
  • Google Chrome
Versions: All versions prior to 102.0.5005.61
Operating Systems: Windows, macOS, Linux, ChromeOS
Default Config Vulnerable: ⚠️ Yes
Notes: Requires user to install a malicious Chrome extension and perform specific Tab Groups interactions

📦 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 crash, denial of service, or limited memory corruption leading to unstable browser behavior

🟢

If Mitigated

No impact if Chrome is updated to patched version or malicious extensions are blocked

🌐 Internet-Facing: HIGH - Attackers can host malicious extensions on websites or extension stores
🏢 Internal Only: MEDIUM - Requires user interaction with malicious extension, which could be distributed internally

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires user to install malicious extension and perform specific Tab Groups interactions; not a drive-by exploit

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 102.0.5005.61 and later

Vendor Advisory: https://chromereleases.googleblog.com/2022/05/stable-channel-update-for-desktop_24.html

Restart Required: Yes

Instructions:

1. Open Chrome menu > Help > About Google Chrome. 2. Chrome will automatically check for updates and install version 102.0.5005.61 or later. 3. Click 'Relaunch' to restart Chrome with the update.

🔧 Temporary Workarounds

Disable Chrome Extensions

all

Temporarily disable all Chrome extensions to prevent malicious extension exploitation

chrome://extensions/ > Toggle off all extensions

Restrict Extension Installation

all

Configure Chrome policies to block extension installation from unknown sources

Configure ExtensionInstallBlocklist or ExtensionInstallWhitelist via Group Policy or registry

🧯 If You Can't Patch

  • Implement strict extension whitelisting policies to only allow trusted extensions
  • Use application control solutions to block Chrome execution or restrict to specific versions

🔍 How to Verify

Check if Vulnerable:

Check Chrome version in menu > Help > About Google Chrome. If version is below 102.0.5005.61, system is vulnerable.

Check Version:

chrome://version/ or 'google-chrome --version' in terminal

Verify Fix Applied:

Confirm Chrome version is 102.0.5005.61 or higher in About Google Chrome page.

📡 Detection & Monitoring

Log Indicators:

  • Chrome crash reports with memory corruption errors
  • Extension installation events from untrusted sources
  • Unusual Tab Groups activity patterns

Network Indicators:

  • Downloads of Chrome extensions from non-Chrome Web Store sources
  • Connections to known malicious extension repositories

SIEM Query:

source="chrome" AND (event="crash" OR event="extension_install") AND version<"102.0.5005.61"

🔗 References

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