CVE-2024-46974
📋 TL;DR
This vulnerability allows non-privileged software to improperly access Direct Memory Access (DMA) buffers, potentially leading to memory corruption or information disclosure. It affects systems using Imagination Technologies GPU drivers where DMA buffer operations are not properly restricted. Users running affected GPU drivers are at risk.
💻 Affected Systems
- Imagination Technologies GPU drivers
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Privilege escalation to kernel-level access, allowing full system compromise, data theft, or persistent malware installation.
Likely Case
Local privilege escalation allowing attackers to gain elevated permissions on the system, potentially accessing sensitive data or installing additional malware.
If Mitigated
Limited impact with proper user privilege separation and DMA buffer isolation, potentially only affecting the compromised user's data.
🎯 Exploit Status
Exploitation requires understanding of DMA buffer operations and driver internals. Local access or ability to execute code on target system is needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Imagination Technologies advisory for specific patched versions
Vendor Advisory: https://www.imaginationtech.com/gpu-driver-vulnerabilities/
Restart Required: No
Instructions:
1. Visit Imagination Technologies advisory page. 2. Identify affected driver versions. 3. Download and install updated GPU drivers from official vendor sources. 4. Verify installation completes successfully.
🔧 Temporary Workarounds
Restrict GPU access
LinuxLimit non-privileged user access to GPU devices and DMA operations through system permissions
chmod 600 /dev/dri/*
setfacl -m u:root:rw- /dev/dri/*
🧯 If You Can't Patch
- Implement strict user privilege separation to limit non-privileged software execution
- Use security modules like SELinux or AppArmor to restrict DMA buffer operations
🔍 How to Verify
Check if Vulnerable:
Check GPU driver version against Imagination Technologies advisory. Use 'modinfo' or driver version commands specific to your system.Check Version:
glxinfo | grep 'OpenGL version' OR check /sys/module/ module parameters for GPU driverVerify Fix Applied:
Verify installed GPU driver version matches or exceeds patched version from vendor advisory. Test DMA buffer access permissions.📡 Detection & Monitoring
Log Indicators:
- Kernel logs showing DMA buffer access violations
- System logs with GPU driver error messages related to memory access
Network Indicators:
- None - local exploitation only
SIEM Query:
source="kernel" AND ("DMA" OR "buffer" OR "GPU") AND ("access denied" OR "violation" OR "corruption")