CVE-2023-33108
📋 TL;DR
This vulnerability allows memory corruption in Qualcomm's Graphics Driver when destroying a context with KGSL_GPU_AUX_COMMAND_TIMELINE objects queued. Attackers could potentially execute arbitrary code or cause denial of service. Affected systems include devices with Qualcomm Adreno GPUs running vulnerable driver versions.
💻 Affected Systems
- Qualcomm Adreno GPU devices
- Smartphones/tablets with Qualcomm chipsets
- Embedded/IoT devices with Qualcomm graphics
📦 What is this software?
Snapdragon W5\+ Gen 1 Wearable Platform Firmware by Qualcomm
View all CVEs affecting Snapdragon W5\+ Gen 1 Wearable Platform Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Local privilege escalation to kernel-level access, allowing complete system compromise, data theft, or persistent malware installation.
Likely Case
Application crash or denial of service affecting graphics functionality, potentially leading to system instability.
If Mitigated
Limited impact with proper sandboxing and privilege separation, potentially only affecting the vulnerable application.
🎯 Exploit Status
Requires local access and ability to trigger specific GPU operations; no public exploit code available as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Driver updates included in January 2024 security bulletin
Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/january-2024-bulletin
Restart Required: Yes
Instructions:
1. Check device manufacturer for security updates. 2. Apply January 2024 or later security patches. 3. Reboot device after update. 4. Verify GPU driver version is updated.
🔧 Temporary Workarounds
Restrict GPU access
allLimit applications with GPU access to trusted sources only
Disable unnecessary GPU features
linuxReduce attack surface by disabling unused GPU functionality
🧯 If You Can't Patch
- Implement strict application sandboxing to limit potential impact
- Monitor for unusual GPU driver crashes or memory corruption events
🔍 How to Verify
Check if Vulnerable:
Check GPU driver version against Qualcomm's January 2024 security bulletin; devices without January 2024 patches are likely vulnerable.Check Version:
On Android: 'adb shell dumpsys gpu' or check Settings > About phone > Android version > Security patch levelVerify Fix Applied:
Verify GPU driver has been updated to version including January 2024 security patches; check system logs for absence of related crashes.📡 Detection & Monitoring
Log Indicators:
- GPU driver crashes (KGSL errors)
- Memory corruption warnings in kernel logs
- Unexpected context destruction events
Network Indicators:
- None - this is a local vulnerability
SIEM Query:
Search for: 'KGSL_GPU_AUX_COMMAND_TIMELINE' OR 'GPU driver crash' OR 'memory corruption' in system logs