CVE-2023-0932 – This is a use-after-free vulnerability in WebRT... (How to Fix)

Q: What is the severity of CVE-2023-0932?

CVE-2023-0932 has a CVSS score of 8.8 (HIGH). This is a use-after-free vulnerability in WebRTC component of Google Chrome on Windows that could allow remote attackers to exploit heap corruption. Attackers can trigger this by convincing users to interact with malicious UI elements on crafted HTML pages. Affects Chrome users on Windows systems.

📋 TL;DR

This is a use-after-free vulnerability in WebRTC component of Google Chrome on Windows that could allow remote attackers to exploit heap corruption. Attackers can trigger this by convincing users to interact with malicious UI elements on crafted HTML pages. Affects Chrome users on Windows systems.

💻 Affected Systems

Products:

Google Chrome
Chromium-based browsers

Versions: Prior to 110.0.5481.177

Operating Systems: Windows

Default Config Vulnerable: ⚠️ Yes

Notes: Only affects Windows versions of Chrome; other operating systems are not vulnerable

📦 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 →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to full system compromise, data theft, or ransomware deployment

🟠

Likely Case

Browser crash (denial of service) or limited memory corruption leading to information disclosure

🟢

If Mitigated

No impact if Chrome is updated to patched version or workarounds are implemented

🌐 Internet-Facing: HIGH - Exploitable via malicious websites without authentication

🏢 Internal Only: MEDIUM - Requires user interaction with malicious content

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ⚠️ Yes

Complexity: MEDIUM

Requires user interaction with specific UI elements; no public exploit code available

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 110.0.5481.177 and later

Vendor Advisory: https://chromereleases.googleblog.com/2023/02/stable-channel-desktop-update_22.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 WebRTC

all

Temporarily disable WebRTC functionality to prevent exploitation

chrome://flags/#disable-webrtc
Set 'WebRTC' flag to 'Disabled'

Use alternative browser

all

Switch to non-Chromium browser until patch is applied

🧯 If You Can't Patch

Implement network filtering to block malicious websites
Use application whitelisting to prevent unauthorized code execution

🔍 How to Verify

Check if Vulnerable:

Check Chrome version in Settings → About Chrome; if version is below 110.0.5481.177, system is vulnerable

Check Version:

chrome://version/

Verify Fix Applied:

Confirm Chrome version is 110.0.5481.177 or higher in About Chrome

📡 Detection & Monitoring

Log Indicators:

Chrome crash reports with WebRTC-related stack traces
Unexpected Chrome process termination

Network Indicators:

Traffic to suspicious domains with WebRTC components
Unusual WebRTC connection attempts

SIEM Query:

source="chrome_crash_reports" AND (process="chrome.exe" OR component="WebRTC")

📊 Metadata

CVE ID: CVE-2023-0932

CVSS v3 Score: 8.8 (HIGH)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE: CWE-416

Published: February 22, 2023

Last Updated: November 21, 2024

🔗 References

https://chromereleases.googleblog.com/2023/02/stable-channel-desktop-update_22.html Release Notes,Vendor Advisory
https://crbug.com/1413005 Permissions Required
https://security.gentoo.org/glsa/202309-17 Third Party Advisory
https://chromereleases.googleblog.com/2023/02/stable-channel-desktop-update_22.html Release Notes,Vendor Advisory
https://crbug.com/1413005 Permissions Required
https://security.gentoo.org/glsa/202309-17 Third Party Advisory

📤 Share & Export

📄 Export Markdown 📋 Export JSON

🔗 Related Vulnerabilities

If you're affected by CVE-2023-0932, you might also want to check these: