CVE-2026-21495
📋 TL;DR
A division by zero vulnerability exists in iccDEV's TIFF Image Reader component, which could cause application crashes or denial of service when processing malicious TIFF files. This affects all users of iccDEV libraries and tools prior to version 2.3.1.2.
💻 Affected Systems
- iccDEV libraries and tools
📦 What is this software?
Iccdev by Color
⚠️ Risk & Real-World Impact
Worst Case
Application crash leading to denial of service, potentially disrupting color management workflows in production systems.
Likely Case
Application instability or crashes when processing specially crafted TIFF files, requiring restart of affected applications.
If Mitigated
Minimal impact with proper input validation and error handling in place, though crashes may still occur.
🎯 Exploit Status
Exploitation requires the victim to process a malicious TIFF file, which could be delivered via email attachments, downloads, or other file transfer methods.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.3.1.2
Vendor Advisory: https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-xhrm-79rg-5784
Restart Required: Yes
Instructions:
1. Update iccDEV to version 2.3.1.2 or later. 2. Restart any applications using iccDEV libraries. 3. Recompile any applications that statically link iccDEV libraries.
🔧 Temporary Workarounds
Disable TIFF processing
allConfigure applications to avoid processing TIFF files through iccDEV libraries
Input validation
allImplement file type validation and sanitization before passing TIFF files to iccDEV
🧯 If You Can't Patch
- Implement strict file upload controls to prevent processing of untrusted TIFF files
- Deploy application monitoring to detect and alert on crashes related to TIFF processing
🔍 How to Verify
Check if Vulnerable:
Check iccDEV version using package manager or by examining installed libraries. Versions below 2.3.1.2 are vulnerable.Check Version:
iccdev --version or check package manager (apt list iccdev, yum list iccdev, etc.)Verify Fix Applied:
Confirm iccDEV version is 2.3.1.2 or later and test TIFF file processing functionality.📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing TIFF files
- Division by zero errors in application logs
- Unexpected termination of processes using iccDEV
Network Indicators:
- Unusual file uploads of TIFF format
- Increased error rates in file processing services
SIEM Query:
source="application.logs" AND ("division by zero" OR "SIGFPE" OR "floating point exception") AND process="*icc*"