CVE-2024-47898
📋 TL;DR
This vulnerability allows non-privileged software to make improper GPU system calls that trigger use-after-free kernel exceptions. It affects systems using Imagination Technologies GPU drivers where unprivileged users can execute code. 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 low-privileged user or malicious application gains elevated privileges on the affected system.
If Mitigated
If proper access controls are in place and users cannot execute arbitrary code, the vulnerability would be contained with minimal impact.
🎯 Exploit Status
Exploitation requires local access and ability to execute code. The use-after-free condition in kernel space makes exploitation non-trivial but feasible for skilled attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Imagination Technologies advisory for specific patched driver versions
Vendor Advisory: https://www.imaginationtech.com/gpu-driver-vulnerabilities/
Restart Required: No
Instructions:
1. Visit the Imagination Technologies security advisory page. 2. Identify affected driver versions. 3. Download and install the patched GPU driver version from Imagination Technologies. 4. Verify the update was successful.
🔧 Temporary Workarounds
Restrict GPU access
LinuxLimit non-privileged user access to GPU system calls and device files
chmod 600 /dev/dri/renderD*
chmod 600 /dev/dri/card*
User privilege restriction
allImplement strict user privilege separation to prevent non-privileged code execution
🧯 If You Can't Patch
- Implement strict access controls to prevent non-privileged users from executing arbitrary code
- Monitor system logs for unusual GPU driver activity or privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check GPU driver version and compare against Imagination Technologies advisory. Use 'lspci -k' to identify GPU and driver information.Check Version:
modinfo imagination_gpu_driver_module_name | grep versionVerify Fix Applied:
Verify GPU driver version has been updated to patched version. Check that /proc/driver/gpu shows updated version information.📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages related to GPU drivers
- Use-after-free kernel exceptions in dmesg
- Failed privilege escalation attempts
Network Indicators:
- None - this is a local vulnerability
SIEM Query:
source="kernel" AND ("use-after-free" OR "GPU" OR "imagination")