CVE-2023-46602
📋 TL;DR
CVE-2023-46602 is a stack-based buffer overflow vulnerability in the icFixXml function of International Color Consortium's DemoIccMAX library. This allows attackers to execute arbitrary code or cause denial-of-service by providing specially crafted XML input. Any application using the vulnerable libIccXML.a library is affected.
💻 Affected Systems
- International Color Consortium DemoIccMAX
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or ransomware deployment.
Likely Case
Application crash causing denial-of-service, potentially disrupting color management workflows.
If Mitigated
Limited impact with proper input validation and memory protections like ASLR and stack canaries.
🎯 Exploit Status
Exploitation requires crafting malicious XML input that triggers the buffer overflow. No public exploits have been reported.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Fixed in commit after 79ecb74 via pull request #53
Vendor Advisory: https://github.com/InternationalColorConsortium/DemoIccMAX/pull/53
Restart Required: Yes
Instructions:
1. Update DemoIccMAX to latest version. 2. Recompile any applications using libIccXML.a. 3. Restart affected services.
🔧 Temporary Workarounds
Input Validation
allImplement strict XML input validation and size limits before passing to icFixXml function.
Memory Protection
linuxEnable ASLR, stack canaries, and DEP/NX bit protection to reduce exploit success.
echo 2 > /proc/sys/kernel/randomize_va_space
gcc -fstack-protector-all -D_FORTIFY_SOURCE=2
🧯 If You Can't Patch
- Isolate affected systems from untrusted networks and implement strict network segmentation.
- Deploy application-level firewalls to block or sanitize XML input to vulnerable functions.
🔍 How to Verify
Check if Vulnerable:
Check if application links against libIccXML.a and uses versions before the fix commit.Check Version:
strings libIccXML.a | grep -i version || check git commit hash in sourceVerify Fix Applied:
Verify the application uses DemoIccMAX version after the fix commit and has been recompiled.📡 Detection & Monitoring
Log Indicators:
- Application crashes with segmentation faults
- Unusual XML processing errors
- Memory access violation logs
Network Indicators:
- Unusually large XML payloads to color management services
- Repeated XML submission attempts
SIEM Query:
source="application.log" AND ("segmentation fault" OR "buffer overflow" OR "icFixXml")