CVE-2024-47899
📋 TL;DR
This vulnerability allows non-privileged software to make improper GPU system calls that trigger use-after-free kernel exceptions. This affects systems using Imagination Technologies GPU drivers where unprivileged users can execute GPU operations. The vulnerability could lead to kernel memory corruption and potential privilege escalation.
💻 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
Successful exploitation could lead to kernel privilege escalation, allowing attackers to gain root/system privileges and potentially execute arbitrary code at the kernel level.
Likely Case
Local privilege escalation where a non-privileged user gains elevated privileges on the affected system, potentially leading to full system compromise.
If Mitigated
With proper access controls and user privilege separation, impact is limited to denial of service or application crashes.
🎯 Exploit Status
Exploitation requires understanding of GPU driver internals and kernel memory management to trigger the use-after-free condition reliably.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched driver versions
Vendor Advisory: https://www.imaginationtech.com/gpu-driver-vulnerabilities/
Restart Required: No
Instructions:
1. Check Imagination Technologies advisory for affected driver versions. 2. Download and install the latest patched GPU driver from official vendor sources. 3. Verify driver version after installation.
🔧 Temporary Workarounds
Restrict GPU access
LinuxLimit GPU system call access to privileged users only through access control mechanisms
# Configure system to restrict GPU device access to specific users/groups
# Example: chmod 660 /dev/gpu_device
# Example: setfacl -m u:username:rw /dev/gpu_device
🧯 If You Can't Patch
- Implement strict user privilege separation to limit non-privileged user access to GPU operations
- Monitor system logs for unusual GPU driver activity or kernel exceptions
🔍 How to Verify
Check if Vulnerable:
Check GPU driver version against vendor advisory and verify if non-privileged users can execute GPU operationsCheck Version:
# Check GPU driver version: cat /sys/module/gpu_driver_module/version 2>/dev/null || dmesg | grep -i gpuVerify Fix Applied:
Verify installed GPU driver version matches patched version from vendor advisory and test GPU operations as non-privileged user📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs mentioning GPU driver
- Use-after-free kernel exceptions in system logs
- Unusual GPU driver activity from non-privileged users
Network Indicators:
- No direct network indicators for this local vulnerability
SIEM Query:
source="kernel" AND ("use-after-free" OR "GPU" OR "kernel exception")