CVE-2022-0603 Overview
CVE-2022-0603 is a Use After Free vulnerability in the File Manager component of Google Chrome on Chrome OS. This memory corruption flaw exists in versions prior to 98.0.4758.102 and can be exploited by remote attackers to potentially trigger heap corruption through a specially crafted HTML page. The vulnerability requires user interaction, meaning an attacker must convince a victim to visit a malicious webpage to trigger the exploit.
Critical Impact
Remote attackers can potentially exploit heap corruption to achieve code execution, data theft, or system compromise through a malicious HTML page targeting Chrome OS users.
Affected Products
- Google Chrome (versions prior to 98.0.4758.102)
- Google Chrome OS
Discovery Timeline
- April 5, 2022 - CVE-2022-0603 published to NVD
- November 21, 2024 - Last updated in NVD database
Technical Details for CVE-2022-0603
Vulnerability Analysis
This vulnerability is classified as CWE-416: Use After Free, a memory corruption issue where a program continues to use a memory location after it has been freed. In the context of the Chrome File Manager component, improper memory management allows an attacker to craft a malicious HTML page that triggers heap corruption when processed by the browser.
The exploitation requires network access and user interaction—the victim must navigate to an attacker-controlled webpage. Once triggered, the vulnerability can potentially allow an attacker to achieve confidentiality, integrity, and availability impacts on the affected system. The use after free condition creates an opportunity for heap corruption, which sophisticated attackers can leverage for arbitrary code execution within the Chrome browser sandbox.
Root Cause
The root cause of this vulnerability lies in improper memory lifecycle management within the File Manager component of Google Chrome on Chrome OS. When certain objects are deallocated, the File Manager fails to properly invalidate references to the freed memory. Subsequent operations that reference this dangling pointer result in use after free conditions, leading to heap corruption that can be exploited by attackers.
Attack Vector
The attack vector for CVE-2022-0603 is network-based and requires user interaction. An attacker can exploit this vulnerability by:
- Crafting a malicious HTML page designed to trigger the use after free condition in Chrome's File Manager
- Distributing the malicious page through phishing campaigns, watering hole attacks, or compromised websites
- When a victim running a vulnerable version of Chrome on Chrome OS visits the page, the crafted content triggers the memory corruption
- The resulting heap corruption can potentially be leveraged to execute arbitrary code within the browser context
The vulnerability does not require elevated privileges or authentication, making it accessible to any remote attacker who can convince a user to visit a malicious webpage.
Detection Methods for CVE-2022-0603
Indicators of Compromise
- Unusual crash reports from the Chrome browser File Manager component
- Unexpected memory access violations or heap corruption errors in browser logs
- Chrome processes exhibiting abnormal memory allocation patterns
- Evidence of users being redirected to suspicious or unknown web pages
Detection Strategies
- Monitor for Chrome browser crashes associated with the File Manager component, particularly on Chrome OS devices
- Implement web filtering to block known malicious domains distributing exploit code
- Deploy endpoint detection solutions capable of identifying memory corruption exploitation attempts
- Review browser telemetry for unusual behavior patterns indicative of heap spray or use after free exploitation
Monitoring Recommendations
- Enable Chrome crash reporting and monitor for File Manager-related failures across your fleet
- Implement network traffic analysis to detect connections to potentially malicious websites
- Configure SIEM alerts for Chrome process anomalies on Chrome OS endpoints
- Review browser extension and content policies to minimize exposure to untrusted content
How to Mitigate CVE-2022-0603
Immediate Actions Required
- Update Google Chrome to version 98.0.4758.102 or later immediately on all Chrome OS devices
- Ensure automatic updates are enabled for Chrome browser and Chrome OS
- Review and restrict user access to untrusted websites through web filtering policies
- Educate users about the risks of clicking on unknown links or visiting untrusted websites
Patch Information
Google has released a security update addressing this vulnerability. Organizations should update Google Chrome on Chrome OS to version 98.0.4758.102 or later. The fix is detailed in the Google Chrome Update Announcement. Additional technical details about the vulnerability can be found in Chromium Bugs Report #1290008.
Workarounds
- Implement strict web content filtering to block access to untrusted or suspicious websites
- Deploy browser isolation technologies to contain potential exploitation attempts
- Consider temporarily restricting File Manager functionality on Chrome OS devices in high-risk environments until patching is complete
- Enable Chrome's Safe Browsing enhanced protection mode for additional defense against malicious pages
# Verify Chrome version on Chrome OS
# Navigate to chrome://settings/help or run:
google-chrome --version
# Ensure version is 98.0.4758.102 or higher
# If not, trigger an update via Chrome OS settings
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
