CVE-2025-53085
📋 TL;DR
A heap-based buffer overflow vulnerability in the SAIL Image Decoding Library's PSD RLE decoding functionality allows remote code execution when processing malicious .psd files. Any application using SAIL v0.9.8 to handle PSD images is affected. Attackers can achieve arbitrary code execution by convincing users or systems to process specially crafted PSD files.
💻 Affected Systems
- SAIL Image Decoding Library
📦 What is this software?
Sail by Sail
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining the same privileges as the process using the library, potentially leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Application crash (denial of service) or limited code execution within the context of the vulnerable application, potentially allowing lateral movement or data exfiltration.
If Mitigated
Application crash with no code execution if memory protections (ASLR, DEP) are effective, but still causing service disruption.
🎯 Exploit Status
Exploitation requires the target to process a malicious PSD file. No authentication is needed if file processing is automated or user-initiated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v0.9.9 or later
Vendor Advisory: https://github.com/smoked-herring/sail/releases
Restart Required: Yes
Instructions:
1. Check current SAIL version. 2. Update to v0.9.9 or later from official repository. 3. Rebuild any applications using SAIL. 4. Restart affected services.
🔧 Temporary Workarounds
Disable PSD file processing
allConfigure applications to reject or not process PSD files if not required
Input validation for PSD files
allImplement file type validation and size limits before passing to SAIL library
🧯 If You Can't Patch
- Implement strict file upload controls to block PSD files at network perimeter
- Run applications using SAIL with minimal privileges and in sandboxed environments
🔍 How to Verify
Check if Vulnerable:
Check if SAIL v0.9.8 is installed and used by applications. Review application dependencies and library versions.Check Version:
Check library version in build configuration or run 'strings /path/to/libsail.so | grep sail_version' on Linux systemsVerify Fix Applied:
Verify SAIL version is v0.9.9 or later. Test with known safe PSD files to ensure functionality.📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing PSD files
- Memory access violation errors in application logs
- Unexpected process termination
Network Indicators:
- Unusual PSD file transfers to systems using SAIL
- File uploads with PSD extensions to web applications
SIEM Query:
source="application_logs" AND ("segmentation fault" OR "access violation" OR "heap corruption") AND process="*sail*"