CVE-2026-24410: iccDEV Null Pointer Dereference DoS Flaw

CVE-2026-24410 Overview

CVE-2026-24410 is a Null Pointer Dereference vulnerability in iccDEV, a library and toolset for interacting with, manipulating, and applying ICC color management profiles. Versions 2.3.1.1 and earlier contain undefined behavior and null pointer dereference issues in the CIccProfileXml::ParseBasic() function. This vulnerability occurs when user-controllable input is unsafely incorporated into ICC profile data or other structured binary blobs, potentially allowing attackers to perform denial of service attacks, data manipulation, application logic bypass, and in some cases achieve code execution.

Critical Impact

Successful exploitation of this vulnerability may allow attackers to crash applications, manipulate ICC profile data, bypass application logic, and potentially achieve code execution through crafted ICC profile inputs.

Affected Products

• iccDEV versions 2.3.1.1 and below
• Applications utilizing iccDEV libraries for ICC color profile processing
• Systems processing untrusted ICC profile data with vulnerable iccDEV versions

Discovery Timeline

• 2026-01-24 - CVE-2026-24410 published to NVD
• 2026-01-26 - Last updated in NVD database

Technical Details for CVE-2026-24410

Vulnerability Analysis

The vulnerability resides in the CIccProfileXml::ParseBasic() function within the iccDEV library, which is responsible for parsing XML representations of ICC color profiles. The function fails to properly validate input data before dereferencing pointers, leading to undefined behavior when processing malformed or maliciously crafted ICC profile data.

When user-controllable input is incorporated into ICC profile data without proper validation, the parsing function may attempt to access memory through null or invalid pointers. This improper input validation (CWE-20) creates a condition where attackers can trigger application crashes or potentially manipulate program execution flow through carefully crafted binary blobs.

The network-accessible attack vector allows remote exploitation when applications process ICC profiles from untrusted sources, such as image files containing embedded color profiles or profile data received over network connections.

Root Cause

The root cause of this vulnerability is improper input validation in the CIccProfileXml::ParseBasic() function. The code fails to verify that required data elements are present and valid before attempting to dereference pointers, resulting in null pointer dereference conditions when encountering malformed input. This lack of defensive programming allows attackers to craft specific inputs that trigger undefined behavior within the parsing logic.

Attack Vector

The attack can be executed remotely over a network connection. An attacker can craft malicious ICC profile data embedded within image files or delivered as standalone profile documents. When a vulnerable application processes this malformed data using the iccDEV library, the CIccProfileXml::ParseBasic() function encounters the crafted input and attempts to dereference an invalid pointer.

The attack requires user interaction (such as opening a malicious file), but no prior authentication or privileges are needed. The vulnerability manifests when the parsing function processes XML-based ICC profile structures without adequate bounds checking or null pointer validation. See the GitHub Security Advisory GHSA-398q-4rpv for additional technical details on the exploitation mechanism.

Detection Methods for CVE-2026-24410

Indicators of Compromise

• Application crashes when processing ICC color profile files from untrusted sources
• Unexpected segmentation faults or access violations in processes using iccDEV libraries
• Anomalous ICC profile parsing errors in application logs
• Memory dump artifacts showing null pointer dereference in CIccProfileXml::ParseBasic() stack traces

Detection Strategies

• Monitor application crash reports for null pointer dereference exceptions occurring during ICC profile processing operations
• Implement file integrity monitoring for ICC profile files in sensitive directories
• Deploy endpoint detection rules targeting processes that crash while handling ICC-related operations
• Review application logs for XML parsing errors related to ICC profile data structures

Monitoring Recommendations

• Enable crash dump collection for applications utilizing iccDEV libraries to capture forensic evidence
• Configure alerting on repeated application crashes involving ICC profile processing workflows
• Monitor network traffic for unusually large or malformed ICC profile data in image file transfers
• Implement sandbox analysis for ICC profile files from untrusted external sources

How to Mitigate CVE-2026-24410

Immediate Actions Required

• Upgrade iccDEV to version 2.3.1.2 or later, which contains the security fix
• Audit applications that depend on iccDEV libraries and prioritize updates for internet-facing services
• Restrict processing of ICC profile data from untrusted sources until patching is complete
• Implement input validation at the application layer as a defense-in-depth measure

Patch Information

The vulnerability has been addressed in iccDEV version 2.3.1.2. The fix is available through the GitHub commit 3cf522b. Organizations should update their iccDEV installations to the patched version immediately. For detailed information about the vulnerability and fix, refer to GitHub Issue #507.

Workarounds

• Disable or restrict ICC profile processing functionality in applications where color management is not essential
• Implement strict input validation to reject ICC profiles that exceed expected size thresholds or contain suspicious structures
• Process ICC profile data in sandboxed environments with limited system privileges
• Configure applications to use only trusted, pre-approved ICC profiles rather than processing user-supplied profiles

# Example: Verify iccDEV version and update if necessary
# Check current installed version
pkg info iccDEV 2>/dev/null || dpkg -l iccDEV 2>/dev/null

# Update to patched version (example for source build)
git clone https://github.com/InternationalColorConsortium/iccDEV.git
cd iccDEV
git checkout v2.3.1.2
cmake -B build && cmake --build build
sudo cmake --install build