CVE-2022-1491

8.8 HIGH

📋 TL;DR

This is a use-after-free vulnerability in Google Chrome's bookmarks feature that could allow heap corruption. Attackers could potentially execute arbitrary code or cause browser crashes by tricking users into interacting with specially crafted bookmarks. All Chrome users prior to version 101.0.4951.41 are affected.

💻 Affected Systems

Products:
  • Google Chrome
Versions: All versions prior to 101.0.4951.41
Operating Systems: Windows, macOS, Linux, ChromeOS, Android
Default Config Vulnerable: ⚠️ Yes
Notes: All Chrome installations with default settings are vulnerable. Requires user interaction with bookmarks.

📦 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 if exploit attempts are blocked by security controls.

🌐 Internet-Facing: HIGH - Attackers can host malicious content on websites that users might visit.
🏢 Internal Only: MEDIUM - Requires user interaction with malicious content, which could come from internal sources or compromised sites.

🎯 Exploit Status

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

Requires specific user interaction with bookmarks. No public exploit code available at disclosure.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 101.0.4951.41 and later

Vendor Advisory: https://chromereleases.googleblog.com/2022/04/stable-channel-update-for-desktop_26.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' when prompted to complete the update.

🔧 Temporary Workarounds

Disable bookmarks feature

all

Remove or disable bookmark functionality to prevent exploitation vector

Not applicable - requires Chrome policy configuration or extension removal

Use Chrome Enterprise policies

windows

Configure policies to restrict bookmark manipulation

Configure via Group Policy (Windows) or plist (macOS) with BookmarkBarEnabled=false

🧯 If You Can't Patch

  • Use alternative browsers until Chrome can be updated
  • Implement application whitelisting to prevent unauthorized Chrome execution

🔍 How to Verify

Check if Vulnerable:

Check Chrome version: chrome://version/ - if version is less than 101.0.4951.41, system is vulnerable.

Check Version:

chrome://version/ or 'google-chrome --version' on Linux/macOS command line

Verify Fix Applied:

Confirm Chrome version is 101.0.4951.41 or higher via chrome://version/

📡 Detection & Monitoring

Log Indicators:

  • Chrome crash reports with memory corruption signatures
  • Unexpected bookmark manipulation events

Network Indicators:

  • Traffic to known malicious sites hosting exploit code
  • Unusual bookmark synchronization activity

SIEM Query:

source="chrome" AND (event="crash" OR event="bookmark_modified") AND version<"101.0.4951.41"

🔗 References

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