CVE-2014-2030
📋 TL;DR
A stack-based buffer overflow vulnerability in ImageMagick's PSD image processing allows remote attackers to crash applications or potentially execute arbitrary code by providing a specially crafted PSD image. This affects systems that process untrusted PSD files using vulnerable ImageMagick versions. The vulnerability is in the WritePSDImage function and involves improper handling of the L%06ld string format.
💻 Affected Systems
- ImageMagick
📦 What is this software?
Imagemagick by Imagemagick
Opensuse by Opensuse
Opensuse by Opensuse
Opensuse by Opensuse
Ubuntu Linux by Canonical
Ubuntu Linux by Canonical
Ubuntu Linux by Canonical
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or persistent backdoor installation.
Likely Case
Denial of service through application crashes when processing malicious PSD files, potentially disrupting image processing services.
If Mitigated
Limited impact with proper input validation and sandboxing; crashes contained within isolated processes.
🎯 Exploit Status
Exploitation requires only a crafted PSD file. Public proof-of-concept code exists in security advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: ImageMagick 6.8.8-6 and later
Vendor Advisory: http://www.openwall.com/lists/oss-security/2014/02/12/2
Restart Required: No
Instructions:
1. Update ImageMagick to version 6.8.8-6 or later using your distribution's package manager. 2. For Ubuntu: sudo apt-get update && sudo apt-get install imagemagick. 3. For CentOS/RHEL: sudo yum update imagemagick. 4. Recompile any applications using ImageMagick libraries.
🔧 Temporary Workarounds
Disable PSD format processing
linuxRemove or disable PSD coder in ImageMagick policy.xml to prevent processing of PSD files
Edit /etc/ImageMagick/policy.xml and add: <policy domain="coder" rights="none" pattern="PSD" />
Input validation
allReject PSD files at application level before passing to ImageMagick
🧯 If You Can't Patch
- Implement strict file type validation to reject PSD files at network perimeter.
- Sandbox ImageMagick processes using containerization or SELinux/apparmor to limit impact.
🔍 How to Verify
Check if Vulnerable:
Check ImageMagick version: convert --version | head -1. If version is 6.8.8-5 or earlier, system is vulnerable.Check Version:
convert --version | head -1Verify Fix Applied:
After update, verify version is 6.8.8-6 or later: convert --version | head -1📡 Detection & Monitoring
Log Indicators:
- ImageMagick process crashes with segmentation faults
- Error logs containing 'psd.c' or 'WritePSDImage' failures
Network Indicators:
- Unusual uploads of PSD files to web applications
- HTTP POST requests with PSD file extensions
SIEM Query:
process_name:"convert" AND (event_type:crash OR exit_code:139)🔗 References
- http://lists.opensuse.org/opensuse-updates/2014-03/msg00032.html
- http://lists.opensuse.org/opensuse-updates/2014-03/msg00039.html
- http://ubuntu.com/usn/usn-2132-1
- http://www.openwall.com/lists/oss-security/2014/02/12/2
- http://www.openwall.com/lists/oss-security/2014/02/13/5
- http://www.openwall.com/lists/oss-security/2014/02/19/13
- https://bugzilla.redhat.com/show_bug.cgi?id=1064098
- https://web.archive.org/web/20090120112751/http://trac.imagemagick.org/changeset/13736
- http://lists.opensuse.org/opensuse-updates/2014-03/msg00032.html
- http://lists.opensuse.org/opensuse-updates/2014-03/msg00039.html
- http://ubuntu.com/usn/usn-2132-1
- http://www.openwall.com/lists/oss-security/2014/02/12/2
- http://www.openwall.com/lists/oss-security/2014/02/13/5
- http://www.openwall.com/lists/oss-security/2014/02/19/13
- https://bugzilla.redhat.com/show_bug.cgi?id=1064098
- https://web.archive.org/web/20090120112751/http://trac.imagemagick.org/changeset/13736
