CVE-2024-22862: FFmpeg Integer Overflow RCE Vulnerability

CVE-2024-22862 Overview

CVE-2024-22862 is an integer overflow vulnerability affecting FFmpeg, the widely-used multimedia framework, in versions prior to n6.1. This vulnerability exists within the JPEG XL Parser component and can be exploited by remote attackers to execute arbitrary code on affected systems. The flaw was identified through the OSS-Fuzz fuzzing infrastructure, demonstrating the value of continuous automated security testing for complex media processing libraries.

Critical Impact

Remote attackers can execute arbitrary code via specially crafted JPEG XL files, potentially leading to complete system compromise without user authentication.

Affected Products

• FFmpeg versions prior to n6.1
• Applications and services that embed vulnerable FFmpeg versions for media processing
• Systems processing untrusted JPEG XL image files using affected FFmpeg builds

Discovery Timeline

• 2024-01-27 - CVE-2024-22862 published to NVD
• 2025-08-11 - Last updated in NVD database

Technical Details for CVE-2024-22862

Vulnerability Analysis

This vulnerability is classified as CWE-190 (Integer Overflow or Wraparound), a memory corruption flaw that occurs when an arithmetic operation produces a numeric value that exceeds the maximum size of the integer type used to store it. In the context of FFmpeg's JPEG XL Parser, this integer overflow condition can corrupt memory allocation calculations, leading to heap-based buffer overflows when processing malicious image data.

The vulnerability is particularly dangerous because it can be triggered remotely through the network when FFmpeg processes untrusted JPEG XL image files. No privileges or user interaction are required for exploitation, making it an attractive target for attackers seeking to compromise media processing pipelines.

Root Cause

The root cause lies in inadequate bounds checking during arithmetic operations within the JPEG XL parsing code. When processing specially crafted JPEG XL image metadata, integer values used for buffer size calculations can wrap around due to overflow, resulting in undersized memory allocations. Subsequent write operations then overflow these buffers, corrupting adjacent heap memory.

Attack Vector

The attack vector is network-based, requiring an attacker to deliver a maliciously crafted JPEG XL file to a system running vulnerable FFmpeg versions. Attack scenarios include:

• Uploading malicious images to media processing services
• Embedding malicious JPEG XL files in web content consumed by applications using FFmpeg
• Sending crafted media files through messaging or file-sharing platforms
• Compromising content delivery networks to serve malicious media

The vulnerability can be exploited without authentication and requires no user interaction beyond the normal processing of media files. Successful exploitation grants the attacker arbitrary code execution in the context of the FFmpeg process, potentially allowing for complete system takeover depending on the process privileges.

Detection Methods for CVE-2024-22862

Indicators of Compromise

• Unusual crash patterns in FFmpeg processes when handling JPEG XL files
• Memory corruption signatures in application logs during media processing
• Abnormal heap allocation patterns detected by memory debugging tools
• Unexpected process spawning from FFmpeg-related processes

Detection Strategies

• Deploy file integrity monitoring on systems processing media files
• Implement input validation to detect malformed JPEG XL headers before processing
• Monitor FFmpeg process memory usage for anomalous allocation patterns
• Use sandbox environments for processing untrusted media content

Monitoring Recommendations

• Enable verbose logging for media processing pipelines to capture error conditions
• Implement application-level monitoring for FFmpeg crash events and restarts
• Deploy endpoint detection solutions capable of identifying memory corruption exploitation attempts
• Monitor network traffic for unusual patterns of JPEG XL file transfers

How to Mitigate CVE-2024-22862

Immediate Actions Required

• Upgrade FFmpeg to version n6.1 or later immediately
• Audit all systems and applications using FFmpeg for vulnerable versions
• Consider disabling JPEG XL parsing in FFmpeg if not required by applying input filters
• Implement network-level controls to limit exposure of media processing services

Patch Information

The FFmpeg development team has addressed this vulnerability in version n6.1. The fix is available in commit ca09d8a0dcd82e3128e62463231296aaf63ae6f7. Organizations should apply this patch or upgrade to a patched version immediately. Review the GitHub FFmpeg Commit for technical details on the fix.

Additional technical details about the vulnerability discovery can be found in the Chromium OSS-Fuzz Issue #62113.

Workarounds

• Process untrusted media files in isolated sandbox environments with restricted privileges
• Implement strict input validation to reject potentially malicious JPEG XL files before FFmpeg processing
• Disable JPEG XL codec support if not required for your use case
• Deploy application-level firewalls to filter suspicious media file uploads

# Check FFmpeg version to verify patched status
ffmpeg -version | head -1

# Example: Disable JPEG XL decoding by filtering input formats
# Note: Specific implementation depends on your application architecture
# Upgrade to FFmpeg n6.1+ is the recommended mitigation