CVE-2025-10934
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code by tricking users into opening malicious XWD image files in GIMP. The heap-based buffer overflow occurs due to improper length validation during XWD file parsing. All GIMP users who open untrusted XWD files are affected.
💻 Affected Systems
- GIMP
📦 What is this software?
Gimp by Gimp
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining the same privileges as the GIMP user, potentially leading to malware installation, data theft, or lateral movement.
Likely Case
Local privilege escalation or malware execution on the user's system, with potential for persistence and data exfiltration.
If Mitigated
Limited impact due to sandboxing or restricted user privileges, potentially only causing application crashes.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file). The ZDI advisory suggests the vulnerability is exploitable for code execution.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version containing commit 5c3e2122d53869599d77ef0f1bdece117b24fd7c
Vendor Advisory: https://gitlab.gnome.org/GNOME/gimp/-/commit/5c3e2122d53869599d77ef0f1bdece117b24fd7c
Restart Required: No
Instructions:
1. Update GIMP to the latest version from official sources. 2. For Linux distributions, use package manager updates. 3. Verify the fix by checking the commit hash in the installed version.
🔧 Temporary Workarounds
Disable XWD file support
linuxRemove or disable the XWD file format plugin to prevent parsing of malicious files
mv /usr/lib/gimp/2.0/plug-ins/file-xwd /usr/lib/gimp/2.0/plug-ins/file-xwd.disabled
Use application sandboxing
linuxRun GIMP in a sandboxed environment to limit potential damage from exploitation
firejail gimp
🧯 If You Can't Patch
- Restrict user privileges: Run GIMP with limited user accounts without administrative rights
- Implement file type restrictions: Block XWD files at email gateways and web proxies
🔍 How to Verify
Check if Vulnerable:
Check if GIMP version is older than the patched version containing commit 5c3e2122d53869599d77ef0f1bdece117b24fd7cCheck Version:
gimp --versionVerify Fix Applied:
Verify the installed GIMP version includes the security fix commit or is from a patched distribution package📡 Detection & Monitoring
Log Indicators:
- GIMP crash logs with memory access violations
- Unexpected process creation from GIMP
Network Indicators:
- Outbound connections from GIMP process to unknown destinations
SIEM Query:
Process Creation where Image contains 'gimp' AND ParentImage not contains 'gimp'