CVE-2023-31341
📋 TL;DR
This vulnerability in AMD μProf allows authenticated attackers to trigger an out-of-bounds write through insufficient IOCTL input validation, potentially causing Windows OS crashes and denial of service. It affects users running AMD μProf on Windows systems.
💻 Affected Systems
- AMD μProf
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system crash leading to sustained denial of service, requiring physical intervention to restore functionality.
Likely Case
Temporary system instability or crash requiring reboot, disrupting user productivity and potentially causing data loss in unsaved work.
If Mitigated
Minimal impact with proper access controls preventing unauthorized users from executing μProf with elevated privileges.
🎯 Exploit Status
Requires authenticated access and understanding of IOCTL manipulation; no public exploit details available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check AMD security bulletin SB-9001 for specific patched versions
Vendor Advisory: https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-9001
Restart Required: Yes
Instructions:
1. Visit AMD security bulletin SB-9001
2. Download latest μProf version
3. Uninstall current version
4. Install updated version
5. Restart system
🔧 Temporary Workarounds
Restrict μProf Access
windowsLimit μProf installation and execution to trusted administrators only
Remove μProf
windowsUninstall μProf from non-essential systems
Control Panel > Programs > Uninstall AMD μProf
🧯 If You Can't Patch
- Restrict user permissions to prevent unauthorized μProf execution
- Monitor systems for μProf crash events and investigate anomalies
🔍 How to Verify
Check if Vulnerable:
Check μProf version against AMD security bulletin; if running affected version and on Windows, system is vulnerableCheck Version:
Check μProf 'About' section or installation detailsVerify Fix Applied:
Verify μProf version matches or exceeds patched version listed in AMD advisory📡 Detection & Monitoring
Log Indicators:
- Windows Event Logs: System crashes, application errors from μProf
- Security logs: Unusual process termination events
Network Indicators:
- No network indicators - local vulnerability
SIEM Query:
EventID=1000 OR EventID=1001 AND SourceName='Application Error' AND ProcessName LIKE '%μProf%'