CVE-2022-48622
📋 TL;DR
This vulnerability in GNOME GdkPixbuf allows heap memory corruption when processing specially crafted ANI (Windows animated cursor) files. Attackers could exploit this to cause denial of service or potentially execute arbitrary code. Systems using affected versions of gdk-pixbuf for image processing are vulnerable.
💻 Affected Systems
- GNOME GdkPixbuf (gdk-pixbuf)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full system compromise if an attacker can deliver a malicious ANI file and trigger parsing.
Likely Case
Application crash or denial of service when processing malicious ANI files, potentially affecting applications that use gdk-pixbuf for image handling.
If Mitigated
Limited impact if proper input validation and sandboxing prevent malicious file processing.
🎯 Exploit Status
Exploitation requires crafting a malicious ANI file and getting it processed by vulnerable software. No public exploit code is known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.42.11 and later
Vendor Advisory: https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/202
Restart Required: Yes
Instructions:
1. Update gdk-pixbuf package using your distribution's package manager. 2. For Ubuntu/Debian: sudo apt update && sudo apt upgrade gdk-pixbuf. 3. For RHEL/CentOS: sudo yum update gdk-pixbuf2. 4. Restart affected applications or reboot system.
🔧 Temporary Workarounds
Disable ANI file processing
linuxBlock or filter ANI files from being processed by applications using gdk-pixbuf
Application sandboxing
allRun applications that process untrusted images in restricted environments
🧯 If You Can't Patch
- Implement strict file type filtering to block ANI files from untrusted sources
- Use application whitelisting to prevent execution of vulnerable image processing applications
🔍 How to Verify
Check if Vulnerable:
Check gdk-pixbuf version: dpkg -l | grep gdk-pixbuf or rpm -qa | grep gdk-pixbuf. If version is 2.42.10 or earlier, system is vulnerable.Check Version:
pkg-config --modversion gdk-pixbuf-2.0Verify Fix Applied:
Verify gdk-pixbuf version is 2.42.11 or later using package manager commands.📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing image files
- Segmentation faults in gdk-pixbuf related processes
Network Indicators:
- ANI file downloads from untrusted sources
- Unusual file transfer patterns
SIEM Query:
Process:gdk-pixbuf AND (EventID:1000 OR Signal:SIGSEGV)