CVE-2024-8362 Overview
CVE-2024-8362 is a Use After Free vulnerability in the WebAudio component of Google Chrome prior to version 128.0.6613.119. This memory corruption flaw allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. The vulnerability has been classified with high severity by the Chromium security team.
Critical Impact
Remote attackers can exploit this vulnerability to achieve heap corruption through specially crafted web pages, potentially leading to arbitrary code execution or browser compromise.
Affected Products
- Google Chrome versions prior to 128.0.6613.119
- All platforms running vulnerable Chrome versions (Windows, macOS, Linux)
- Chromium-based browsers using affected WebAudio implementations
Discovery Timeline
- September 3, 2024 - CVE-2024-8362 published to NVD
- January 2, 2025 - Last updated in NVD database
Technical Details for CVE-2024-8362
Vulnerability Analysis
This Use After Free (CWE-416) vulnerability exists within Google Chrome's WebAudio API implementation. Use After Free vulnerabilities occur when a program continues to reference memory after it has been freed, allowing attackers to manipulate the freed memory region. In the context of WebAudio, improper memory management during audio processing operations creates a condition where freed memory can be accessed or manipulated by an attacker through malicious JavaScript code embedded in a crafted HTML page.
The WebAudio API provides powerful audio processing capabilities for web applications, making it an attractive target for exploitation. When the vulnerability is triggered, the browser may read from or write to memory that has been reallocated for other purposes, potentially leading to heap corruption and subsequent code execution.
Root Cause
The root cause of CVE-2024-8362 lies in improper memory lifecycle management within the WebAudio component. When certain audio processing objects are deallocated, references to the freed memory regions are not properly invalidated. This creates a dangling pointer scenario where subsequent operations can access memory that is no longer valid, leading to heap corruption when the memory is reused.
Attack Vector
The attack vector for this vulnerability is network-based, requiring user interaction. An attacker must craft a malicious HTML page containing JavaScript code that manipulates the WebAudio API in a specific manner to trigger the Use After Free condition. The attack scenario typically involves:
- Attacker hosts a malicious webpage or compromises a legitimate site
- Victim navigates to the malicious page using a vulnerable Chrome version
- Malicious JavaScript triggers the WebAudio vulnerability
- Heap corruption occurs, potentially allowing arbitrary code execution within the browser sandbox
The exploitation mechanism involves crafting specific sequences of WebAudio API calls that trigger the premature freeing of audio processing objects while maintaining references that are subsequently used. Technical details regarding the specific trigger conditions can be found in the Chromium Issue Tracker Entry.
Detection Methods for CVE-2024-8362
Indicators of Compromise
- Unexpected browser crashes or instability when visiting unfamiliar websites
- Chrome crash reports indicating heap corruption in WebAudio-related processes
- Unusual memory access patterns in Chrome renderer processes
- Detection of malicious JavaScript targeting WebAudio API functions
Detection Strategies
- Monitor for anomalous WebAudio API usage patterns in web traffic
- Implement browser-based exploit detection to identify heap spray attempts
- Deploy endpoint detection solutions capable of identifying Use After Free exploitation attempts
- Utilize memory corruption detection mechanisms in endpoint security products
Monitoring Recommendations
- Enable Chrome's built-in crash reporting to identify potential exploitation attempts
- Monitor network traffic for suspicious HTML pages containing complex WebAudio implementations
- Implement security information and event management (SIEM) rules for browser-based attack patterns
- Deploy SentinelOne's behavioral AI detection to identify post-exploitation activities
How to Mitigate CVE-2024-8362
Immediate Actions Required
- Update Google Chrome to version 128.0.6613.119 or later immediately
- Enable automatic Chrome updates across all managed endpoints
- Audit enterprise environments to identify systems running vulnerable Chrome versions
- Consider temporary restrictions on untrusted web content until patches are deployed
Patch Information
Google has addressed this vulnerability in Chrome version 128.0.6613.119. The security update was announced via the Google Chrome Stable Update channel. Organizations should prioritize deploying this update across all endpoints running Google Chrome.
The fix addresses the memory management issue in the WebAudio component by properly invalidating references when audio objects are deallocated, preventing the Use After Free condition from occurring.
Workarounds
- Disable JavaScript on untrusted sites using Chrome's site settings or extensions
- Consider using browser isolation technologies for high-risk browsing activities
- Implement network-level filtering to block access to known malicious domains
- Deploy application whitelisting to restrict browser plugin usage
# Verify Chrome version on Linux/macOS
google-chrome --version
# Expected output: Google Chrome 128.0.6613.119 or higher
# Force Chrome update check (Windows PowerShell)
# Navigate to chrome://settings/help in browser to trigger update
Start-Process "chrome://settings/help"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
